Appellant Paul M. Anderson challenges his sentence after pleading guilty to charges of distributing and possessing with intent to distribute cocaine and cocaine base. The district court sentenced Anderson to 57 months in prison, with concurrent terms of four years of supervised release, and a $600 mandatory penalty. Anderson argues that the district court erred by applying a two-level sentencing enhancement fоr firearm possession under the sentencing guidelines. He also challenges his sentence under
United States v. Booker,
I.
On November 14, 2003, a confidential informant told drug agents that Anderson had agreed to sell the informant cocaine at Anderson’s house later that day. The agents followed the informant to Anderson’s house, where Anderson sold him cocaine. Over the next four weeks, the informant made several additional controlled buys of cocaine and crаck cocaine from Anderson in his house. On January 7, 2004, agents searched Anderson’s house pursuant to a warrant and seized several baggies, each of which contained cocaine. During the search, agents also seized a loaded Smith and Wesson 9mm semi-automatic handgun, found in the living room along with a ledger recording money owed to Anderson. The agents arrested Anderson.
On August 26, 2004, Anderson appeared in district court and pled guilty to a six-count indictment. Counts I through III and VI charged him with distributing and possessing with intent to distribute cocaine in violation of 21 U.S.C. §§ 841(a)(1) and *89 841(b)(1)(C). Counts IV and V alleged distribution and possession with intent to distribute more than 5 grams of cocaine base in violation of 21 U.S.C. §§ 841(a)(1) and 841(b)(1)(B).
The pre-sentence investigation report (“PSI”) found a base offense level of 28 and a Criminal History of I. The PSI then recommended a two-level reduction fоr the defendant’s acceptance of responsibility and reported that the government would recommend a further one-level reduction. The PSI also recommended a two-level enhancement for firearm possession. The PSI recommended against a “safety valve” reduction. The total adjusted offense level in the PSI was 27, yielding an initial guidelines sentencing range of 70-87 months.
The PSI also noted thаt Anderson and his mother stated that Anderson had been dealing with serious mental health problems since childhood. While on pretrial supervision, Anderson met with Dr. Jeremy Spiegel, a psychiatrist, who observed symptoms of multiple anxiety disorders, including obsessive-compulsive disorder, panic disorder with agoraphobia, anxiety, and social anxiety. The PSI noted that Anderson might request a downward departure based on his mental health problems.
Anderson objected to the PSI. He disputed the recommended two-level firearm enhancement, stating that the gun was not used in connection with the crime because “this firearm was purchased as personal protection after a series of armed home invasions in Sanford, Maine in late 2000.” He also argued that his possession of a gun did not preclude the benefits of the “safеty valve” reduction.
At the sentencing hearing, the government agreed that the defendant would be eligible for the safety valve reduction because, it stated, “[the prosecution] would have to provide the court with some evidence that the gun was used in connection with the offense, which [the prosecution] ha[s] no such evidence.” The district court applied the two-level safety valve reduction.
The government then argued that, notwithstanding the application of the safety valve reduction, the two-level firearm enhancement should apply. The defendant challenged the application of the enhancement, arguing that, under
Blakely v. Washington,
The defendant also asked the district court for a downward departure on the basis of his serious mental health problems. The district court noted that the Guidelines discouraged departures on the basis of mental health unless the facts took the case outside of the “heartland” of other cases involving defendants with mental health problems. After carefully considering the facts, the district court noted that “[i]t’s unfortunately the case that Mr. Anderson’s condition is not outside the heartland” and that, although his condition was serious and severe, the court “see[s] a number of severe or serious mental health issues.”
The district court calculated a final offense level of 25, yielding a guidelines sentencing range of 57-71 months. The district court imposed a sentence of 57 months in prison, with concurrent terms of four years of supervised release, and a $600 mandatory penalty. The judge stated that the crime “deserves the punish *90 ment that is being imposed,” and noted that the sentence, at the bottom of the guidelines range, was “a legitimate and adequate sentence.”
II.
Anderson raises two main arguments on appeal. First, he argues that the district court improperly applied the two-level firearm sentencing enhancement under the United States Sentencing Guidelines Manual (“U.S.S.G.”) § 201.1(b)(1). Second, he challenges his sentence in the wake of Booker, where the Supreme Court held that the guidelines must be treated as advisory rather than mandatory. Wе address his arguments in turn.
A. Application of the Firearm Sentencing Enhancement
We review a district court’s interpretation of the guidelines
de novo
and its factual findings for clear error.
United States v. Robinson,
The defendant argues that, because the government concеded that the safety valve applies, the district court erred in applying the two-level sentencing enhancement for gun possession. The district court found nothing contradictory about applying both the enhancement and the reduction, concluding that different standards apply for each.
We agree with the district court. The burdens for establishing the applicability of the safety valve reduction and thе weapon enhancement are different. Section 5C1.2, the “safety valve” provision, permits a two-level reduction in offense level if the defendant and the offense meet certain enumerated criteria.
See United States v. McLean,
Section 2Dl.l(b)(l) permits a two-level enhancement “[i]f a dangerous weapon (including a firearm) was possessed.” To garner this enhancement, the government has the initial burden of establishing “that a firearm possessed by the defendant was present during the commission of the offense.”
United States v. McDonald,
Thus, the burden on the defendant is different for these two sentencing provisions. The application of the safety valve (which requires the defendant to establish *91 by a preponderance of the evidence that he did not possess the firearm in connection with the offense) does not necessarily mean that the defendant can meet the heavier burden, once the government shows that the firearm was present during the commission of the offense, of establishing that it was clearly improbable that the gun was used in connection with the offense.
Other courts have addressed similar arguments regarding the interaction of the safety valve adjustment under § 5C1.2 and the firearm enhancement under § 2Dl.l(b)(l).
1
At least two circuits have concluded that the application of a firearm enhancement under § 2Dl.l(b) does not necessarily preclude a safety valve reduction under § 5C1.2.
2
See United States v. Bolka, 355
F.3d 909, 915 (6th Cir.2004) (noting the different burdens of proof under the two sentencing provisions);
United States v. Nelson,
In support of his position that the application of the safety valve reduction precludes the application of the firearm enhancement in his case, Anderson relies primarily on
United States v. Vasquez,
*92
We thus discern no legal error in the district court’s application of the firearm enhancement given its acceptance of the safety valve reduction. Nor were the district court’s findings related to the firearm enhancement clearly erroneous. The defendant conceded that there was a loaded gun in the home in which he sold drugs. On that basis alone, the government met its burden of establishing that the gun was present at the commission of the offense.
See McDonald,
B. Booker error
The parties agree that Anderson preserved his
Booker
claim by raising a
Blakely
argument in the district court.
4
See United States v. Antonakopoulos,
The government has the burden of establishing that the preserved
Booker
error
*93
was harmless.
See United States v. Vázquez-Rivera,
In this case, the government acknowledged that it has the difficult burden of proving harmless error, but it did not specify which specific standard is applicable. Because thе government only had the burden at sentencing of establishing the presence of the gun for the firearm enhancement, and Anderson conceded that his gun was present in his home where the drug buys occurred, it is arguable that the Booker error in this case involves only the mandatory application of the guidelines. However, regardless of whether such an error is constitutional, we conclude that the government has not mеt its burden of proving harmless error. The government argues that “nothing in the record suggests that, given a chance to reflect again, the lower court would select anything other than the 57-month term it chose initially.” To support this assertion, the government points to the judge’s statements during sentencing that the crime “deserves the punishment that is being imposed,” and that the sentence was “a legitimate and adequate sentence.” However, the government fails to account for the district court’s consideration and discussion of Anderson’s “serious mental health issues,” presented in support of his request for a downward departure.
In addressing this request, the district court correctly noted that the guidelines discourage departures on the basis of mental health problems unless the facts take the case outside of the “heartlаnd” of other cases involving defendants with mental health problems.
See, e.g., United States v. Maldonado-Montalvo,
After carefully considering the facts presented on Anderson’s mental health history, the court found that “[fit’s unfortunately the case that Mr. Anderson’s condition is not outside the heartland” and that, although his condition was serious and se *94 vere, the court “see[s] a number of severe or serious mental health issues.” This is a classic mandatory guidelines analysis.
Taking into account the heavy burden of the government to establish harmless error, we must question the government’s assertion that the district court would not sentence Anderson more leniently in a post
-Booker
world. We have explained that, “under the advisory guidelines scheme set in place by
Booker,
a sentencing court will ordinarily begin by calculating the applicable guidelines range and then determine whether other factors ‘warrant an ultimate sentence above or below the guideline range.’ ”
United States v. Zapete-Garcia,
III.
For the reasons explained above, we vacate the defendant’s sentence and remand to the district court for re-sentencing. We express no view as to whether the district court should ultimately alter the sentence on remand.
So ordered.
Notes
. We have previously held, in the co-conspirator liability context, that "any automatic equation of the possession of a firearm by another and unavailability of the safety valve is mistaken.”
United States v. Figueroa-En-carnacion,
. The district court in both of those cases held that the application of the firearm enhancement during sentencing automatically precluded the defendant from receiving a safety valve reduction. Thus, the question on appeal in those cases was whether the district court erred in automatically precluding the defendants from the safety valve reduction. That question differs from what we are considering here — whether the apрlication of the safety valve reduction in Anderson's case should have automatically precluded the application of the firearm enhancement. However, the discussion of the differing burdens for the safety valve reduction and firearm enhancement provisions in those cases is helpful for our analysis.
. Anderson also appears to challenge the district court's applicatiоn of the firearm sentencing enhancement under
Booker.
Specifically, he argues that his concession that he had a loaded gun in his home does not amount to proof beyond a reasonable doubt that the gun was used in connection with the offense. This challenge is a non-starter.
Booker
does not require the government, in an advisory guidelines system, to assume burdens that are allocated to the defendant under the guidelines, or change the applicable burden from preponderance of the evidence to proof beyond a reasonable doubt.
See United States v. Yeje-Cabrera,
. Specifically, the government stated in its brief that, "[i]n this case, although Anderson’s argument below is different from the one he makes on appeal, the record shows that the court and the parties were keenly aware of
Booker’s
predecessor,
Blakely v. Washington,
