A jury convicted appellant Keith Collins of possessing crack cocaine with intent to distribute it and of conspiring to do the same. Collins argues that the district court erroneously denied his motion to suppress the evidence against him, that evidence of his gun ownership and certain cocaine sales should not have been admitted against him at trial, and that the district court should have granted a mistrial. Also, when Collins was sentenced, the district court quite rеasonably believed that it could not consider the disparity between the sentencing guidelines for crack cocaine and powder cocaine when imposing sentence. The parties agree that the Supreme Court’s decision in
Kimbrough v. United States, 552
U.S. 85,
The Facts
Based on information that Collins was involved in cocaine distribution, the United States Drug Enfоrcement Agency and Chicago Police Department began surveillance of Collins and his alleged co-conspirator Gregory McNeal. During that surveillance on January 24, 2003, DEA Special Agent William Warren radioed that he had observed Collins leave McNeal’s residence and place a large plastic bag of what he thought was crack cocaine inside a black Ford Mustang driven by Collins’ girlfriend Rokesha Johnson. The officers promptly arrested Collins and searched the Mustang, discovering a bag containing 673 grams of crack cocaine behind the driver’s seat. A search of Collins revealed another small bag of crack cocaine. Upon questioning by Agent Warren, Collins confessed that he and *484 McNeal had conspired to process and distribute crack cocaine over the past several months, and he admitted placing the cocaine in the Mustang. Collins also stated that he was delivering the smaller bag of cocaine for sale to a nearby customer. Collins was indicted for possessing more than 50 grams of crack cocaine with intent to distribute and with conspiracy to do the same, with the conspiracy alleged to have occurred between approximately August 2002 and the day of Collins’ arrest.
Before trial, Collins moved to suppress the evidence seized in the course of his arrеst. At the hearing on that motion, Agent Warren testified that he had set up surveillance in an unmarked car approximately 50 yards south of the home where McNeal cooked the crack cocaine. To aid in his surveillance, Warren used a pair of binoculars and a camera with a telephoto lens. Warren was in regular contact with other law enforcement officers via radio, but he was the only individual with an unobstructed (but distant) view of Collins at the critical moments.
Warren testified that on the day in question, he observed Collins leave McNeal’s house carrying a large brown paper bag. Collins walked to the passenger side of the Mustang, opened the passenger door, and pulled a clear plastic bag from inside the paper bag. Warren testified that, despite his distance from Collins, he recognized the substance inside the bag as crack cocaine. Collins then leaned into the passenger compartment of Johnson’s Mustang, placed the plastic bag inside, closed the door, and walked away. According to Warren, Collins was at the Mustang for approximately a minute, and the bag of cocaine was visible for only a few seconds.
Warren took photographs of these events as they occurred, but he did not take any photograph showing Collins holding the plastic bag of cocaine. His photographs show Collins approaching the Mustang with a large paper bag, leaning inside the Mustang, and then walking away with the paper bag. Chicago police officer Andrew Marquez, who was aiding in the surveillance that day, corroborated Warren’s statements, however, testifying that Warren had radioed seeing Collins place a bag of cocaine into the Mustang. The defendants did not offer any conflicting testimony in the suppression heаring. The district court found Agent Warren’s account of events credible and denied Collins’ motion.
The case against Collins then proceeded to trial. Collins and McNeal were tried jointly, but because Collins’ confession had implicated McNeal, the case was tried before two juries simultaneously. During the trial, one jury sometimes needed to be excused from the courtroom during the presentation of evidence inadmissible against the defendant whоse case it was considering.
During the government’s case-in-chief, the bag of crack cocaine was admitted into evidence, and Agent Warren testified regarding the events surrounding Collins’ arrest and confession. Warren also testified that firearms and ammunition were recovered from Collins’ residence. Pursuant to a plea agreement, Johnson testified against Collins, stating that she had dated Collins from June 2002 to the time of his arrest and that she had seen him sell сocaine approximately every other day during that time. Johnson explained that on the day of Collins’ arrest, he had asked her to drive to McNeal’s residence. When she arrived there, Collins came to the passenger side of her Mustang with a brown paper bag, opened the passenger door, and placed a bag of crack cocaine in the back passenger compartment. Johnson also testified that Collins kеpt a gun under his *485 mattress at home and that he had used a gun to shoot at a rat in an alley. Collins rested without calling any witnesses or presenting any evidence.
Because Collins and McNeal were tried jointly but to different juries, two sets of closing arguments were given, one to each jury. The closing arguments in Collins’ case were first. His jury then began its deliberations while closing arguments were made to McNeal’s jury. Before the closing arguments in McNeal’s case concluded, Collins’ jury sent a note to the judge asking to see a copy of a police report, if it had been admitted into evidence, and requesting a list of the exhibits that were admitted into evidence. The district judge responded that the report had not been admitted into evidence and that an exhibit list would be provided once McNeal’s closing arguments had concluded. A short time later, before the promised exhibit list was made available, Collins’ jury informed the court that it had reached its verdict.
Around this time, Collins’ counsel realized that some exhibits that had been admitted into evidence — a map and photographs of a car similar to Johnson’s Mustang — had not been provided to the Collins jury for use during its deliberations. The defense had used these exhibits to challenge Warren’s credibility, arguing that they showed that Warren had significantly understated the distance from which he had conducted his surveillance and thаt Collins could not have simply leaned inside the two-door Mustang without moving the passenger-side seat out of the way. Collins moved for a mistrial. The court denied the motion, noting that the jury knew how to request any exhibits it wished to review and that the jury was aware that a list of exhibits would be provided later that day. The court then received the jury’s verdict, which found Collins guilty on all charges.
Collins later filed a post-trial motion renewing his motion to suppress in light of the evidence presented at trial and again requesting a new trial because not all of the admitted evidence was made available to the jury. The court denied the motion.
At sentencing, the district court determined that the applicable crack cocaine Guidelines range for Collins’ offense was 188 to 235 months. The court also observed that the range was much higher than it would have been if Collins had been charged with conspiracy to distribute the samе amount of powder cocaine. Collins argued that the court could take this sentencing disparity into account when determining a reasonable sentence. The district judge disagreed: “I don’t believe it’s really an open issue in this circuit ... for me to take that disparity into account in imposing a sentence. The Seventh Circuit has essentially said that since
Booker
.... ” (This statement at the time of Collins’ sentencing in late 2005 anticipated our decision in
United States v. Miller,
*486 Analysis
I. The Motion to Suppress
Collins first argues that the district court erred by denying his motion to suppress and by crediting Agent Warren’s testimony. Warren was the only law enforcement officer who claimed to have seen Collins with the incriminating bag of cocaine, so probable cause for Collins’ arrest (and the suspicion for the stop of Johnson’s Mustang) depended on Warren’s credibility. To challenge Warren’s credibility, Collins points out, among other things, that none of the photographs actually show him with the plastic bag of cocaine, and he argues that Warren was too far away to recognize the substance in the bag. The government argues that Warren’s use of binoculars and a camera with a telephoto lens enabled him to observe the rather large bag of cocaine even at a distance, and that Warren’s failure to phоtograph Collins with the cocaine was explained by the camera’s slow mechanism and the fact that he was juggling the camera, the binoculars, and two radios.
We review a district court’s factual determinations on a motion to suppress for clear error.
United States v. Burnside,
We cannot conclude that the district court’s credibility assessment completely lacked foundation. Our review of the prоverbial cold record indicates that some aspects of Warren’s testimony seem unlikely, such as his apparent ability to identify crack cocaine at a great distance. Yet his uncontradicted testimony did not rise to the level of impossibility. Although Warren observed the crack cocaine at a substantial distance, his vision was aided by binoculars or his camera’s telephoto lens. Furthermore, much of Warren’s story was corroborated by his photographs, as well as the testimony provided by Johnson and Officer Marquez.
The record shows that the district judge fully understood the issue and gave close attention to the evidence. Taken as a whole, the record reveals a difficult question of credibility that the district judge ultimately resolved in the government’s favor. Collins and the other defendant offered no evidence contradicting Agent Warren’s testimony. There are at least two plausible interpretations of the record, and the district court’s choice of the interpretation Collins disfavors did not amount to clear error. See
Anderson v. City of Bessemer City,
II. Evidence of Firearm Possession
Collins objects to the government’s introduction of evidence that he possessed and used (for the mundane purpose of shooting at a rat in an alley) two handguns and ammunition. Collins аrgues that this evidence was unfairly prejudicial and should have been excluded under Federal Rule of Evidence 403.
Under Rule 403, relevant evidence may be excluded if it is so unfairly prejudicial that it will cause the jury to decide the case on an improper basis rather than on the evidence. See
United States v. Pulido,
Collins cannot overcome the obstacle posed by the plain-error standard of review. The evidence regarding his possessiоn of guns and ammunition was only slightly prejudicial, if at all. The trial testimony indicated only that Collins owned guns, one of which he had used to shoot at a rat. Furthermore, Collins’ counsel elicited testimony on cross-examination indicating that Collins possessed the guns legally. Millions of Americans lawfully possess and use firearms, and they have a constitutional right to do so. See
District of Columbia v. Heller,
— U.S. -,
III. Evidence of Crack Cocaine Sales
Collins also objects to Johnson’s testimony that, during the course of their relationship, she observed him sell crack cocaine on numerous occasions. Collins initially objected to this testimony on the grounds of a lack of foundation and the difficulty of cross-examining Johnson. On appeal, Collins raises a new objection that this testimony constituted evidence of pri- or bad acts made inadmissible by Federal Rule of Evidence 404(b).
2
As a result of
*488
defendant’s shift in the argument, our review is for plain error.
United States v. Wynn,
Collins has not shown plain error. First, the bulk of the cocaine sales that Johnson described — those that took place between August 2002 and the time of Collins’ arrest — occurred during the time frame of the charged conspiracy and are not “prior bad acts” as that term is understood. Cf.
United States v. Macedo,
Johnson’s testimony about drug sales during her relationship with Collins also included cocaine sales in June and July of 2002, shortly before the first specific date of the charged conspiracy. Even if these sales might have been subject to Rule 404(b) analysis, and even if their admission might have been plainly erroneous (which we doubt), we could not conclude that this testimony prejudiced Collins. The evidence of Collins’ guilt — the crack cocaine itself, Agent Warren’s testimony, Johnson’s testimony corroborating Warren’s testimony and implicating Collins in the conspiracy, and Collins’ own confession — was overwhelming. As a result, even if this portion of Johnson’s testimony might have been admitted in error, it was merely cumulative. Its exclusion would not have made an acquittal probable. See
Rangel,
As a final note, in the course of his Rule 404(b) argument, Collins complains that nothing explicitly connectеd any of these drug sales with the charged conspiracy. Even if we were to construe this as an argument that Johnson’s testimony lacked a proper foundation, we note that “no rule of evidence requires a ‘foundation’ ” and that the rules of evidence generally make all relevant evidence admissible.
A.I. Credit Corp. v. Legion Ins. Co.,
IV. Motion for Mistrial
Collins argues that the district court erred when it denied his motion for a mistrial after it was discovered that the map and photographs of a Mustang resembling Johnson’s car were not provided to the jury during its deliberations. Without every defense exhibit readily available to the jury, Collins contends, the jury was unable to consider properly his arguments challenging Agent Warren’s credibility.
*489
We review the denial of Collins’ motion for an abuse of discretion.
United States v. Magana,
The district court acted reasonably by denying the motion for a mistrial. Generally, a mistrial is appropriate when an event during trial has a real likelihood of preventing a jury from evaluating the evidence fairly and accurately, so that the defendant has been deprived of a fair trial. See,
e.g., United States v. Curry,
Absent some special circumstance, a failure to make an exhibit available to a jury during deliberations is no cause for a mistrial, particularly when the trial was short and the information is such that it “should be fresh in the jurors’ minds.”
Deicher,
The general rule stated in
Deicher
and
Guy
does not apply when a district court fails to provide admitted evidence to the jury in an evenhanded manner. See
United States v. Salerno,
V. Sentencing
Finally, the parties agree that resentencing is necessary because the district court believed that it could not take into account the disparity between the Sentencing Guidelines advisory ranges for powder and crack cocaine when determining Collins’ sentence. Legal developments after Collins’ sentencing revealed that the district court erred, not through any fault of its own, but by following or anticipating this court’s decisions before the Supreme Court’s decision in
Kimbrough
authorized district courts to consider the disparity when exercising their discretion under 18 U.S.C. § 3553(a). See
We Affirm Collins’ convictions and Remand his ease to the district court for resentencing.
Notes
. Most cases with
Kimbrough
issues have been resolved long before now, but this ap
*486
peal is actually Collins' second direct appeal from his conviction. This second appeal was allowed after Collins prevailed on his post-conviction claim that his first appellate counsel provided only ineffective assistance. See
United States v. Collins,
. In passing, Collins' brief makes a perfunctoiy mention of the need for Rule 403 analysis
*488
of this evidence, but he did not develop that argument. As we have said numerous times, undeveloped arguments are deemed waived on appeal.
E.g., United States v. Berkowitz,
