Affirmed by published opinion. Judge PHILLIPS wrote the opinion, in which Senior Judge BUTZNER and Senior Judge YOUNG joined.
OPINION
James Darnell Wallace challenges on various grounds the sentence that followed his plea of guilty to a charge of conspiracy to distribute fifty or more grams of cocaine base in violation of 21 U.S.C. §§ 841(a) and 846. Wallace’s primary contentions are that pursuant to a plea agreement he provided substantial assistance to the government’s investigation of the criminal activities of other persons and that, upon his doing so, the government became obligated under the terms of his plea agreement to file a downward departure motion and, alternatively, that the government’s refusal to make such a motion was based on unconstitutional motives, namely racial prejudice. We conclude that neither of these contentions, nor any other challenge to the sentence imposed, has merit, and we therefore affirm the sentence.
I
On several occasions during the spring and summer of 1992, Wallace sold cocaine base (“crack”) to undercover law enforcement officers at various locales in Herndon, Virginia. In January, 1993, Wallace was arrested. In February, he waived indictment and pursuant to the terms of a written plea agreement pled guilty to a one-count criminal information charging him with conspiracy to distribute fifty grams or more of cocaine base in violation of 21 U.S.C. §§ 841(a)(1) and 846.
According to the terms of the plea agreement:
The defendant agrees to cooperate fully and truthfully with the United States, and provide all information known to the defendant regarding any criminal activity. J.A. 10. The parties agree that the United States reserves its option to seek any departure from the applicable sentencing guidelines, pursuant to Section 5K of the Sentencing Guidelines and Policy Statements, 1 or Rule 35(b) of the Federal Rules of Criminal Procedure, 2 if in its sole discretion, the United States determines that the defendant has provided substantial assistance and that such assistance has been completed. J.A. 12.
The defendant agrees that the decision whether to file such a [substantial assistance] motion rests in the United States’ sole discretion. J.A. 15.
Shortly after his plea of guilty, Wallace was interviewed twice by special agents of the United States Drug Enforcement Administration (DEA). During the meetings, both of which lasted several hours, Wallace provided information concerning at least one, and possibly two, of his cocaine suppliers.
When, after these meetings, the government did not file a downward departure motion with the district court, Wallace made a Motion for Specific Enforcement of Plea Agreement. He asked the district court to direct the government to move for a downward departure pursuant to § 5K1.1 of the Sentencing Guidelines. In the motion, Wallace argued that he had complied with the terms of the plea agreement and was thus entitled to a downward departure based on having provided substantial assistance. He asserted that despite the fact that he “provided information to the government regarding the drug activities of an individual who is now the subject of an investigation,” the United States “has refused even to submit Mr. Wallace’s case to its Substantial Assistance Committee.” J.A. 61. In addition, Wallace’s motion alleged that the government’s failure to file a downward departure motion was based on his race; he is an African American. Finally, the motion alleged that the United States Sentencing Guidelines applied in his sentencing are inherently racist, and that the court should compensate for this bias by directing a downward departure.
The government, in its response, noted the plea agreement provisions leaving the decision whether the defendant provided substantial assistance to the government’s “sole discretion.” While admitting that Wallace provided information concerning two of his cocaine suppliers, the government contended that both were already targets of DEA investigations. Although Wallace’s “cooperation and assistance, to date, has provided additional evidence against these suppliers, [it] can in no way be considered ‘substantial’ Even if it were, the defendant has not ‘completed’ his cooperation as required by the express terms of his plea agreement.” J.A. 262. The government further argued that under
United States v. Wade,
At Wallace’s sentencing hearing, his counsel reiterated his argument that “crack” cocaine sentences are unconstitutionally disproportionate when compared with sentences for powder cocaine. And he again argued that Wallace gave substantial assistance and should be given a § 5K1.1 downward departure.
The district court denied Wallace’s motion. It did so based on the fact that the plea agreement left the decision whether to file a downward departure motion in the sole discretion of the United States Attorney. As for the “cocaine-versus-crack argument,” the court noted that it “has been made before, unsuccessfully.” J.A. 277-78. While expressing sympathy, the court observed that the issue was one for Congress not the courts and sentenced Wallace to a term of 120 months.
This appeal followed.
Here, as in the district court, Wallace challenges the district court’s refusal to grant a substantial assistance downward departure on alternative grounds. First, he contends that he was entitled to it as a simple matter of enforcing his plea agreement with the government: the government promised to move for such a departure if he gave substantial assistance, and he had done so. Second, he contends that, independent of the plea agreement, he was entitled to the departure because of his proof that racial discrimination (he being black) was the motive for the government’s refusal to make the required motion. We take these in turn.
A
The argument that the plea agreement obligated the government to move for a downward departure upon Wallace’s provision of substantial assistance fails for a simple reason. Unlike the plea agreement in
United States v. Conner,
B
Wade v. United States,
— U.S.-,
Here, as indicated, there was no enforceable obligation arising from the plea agreement; the government’s refusal was a purely discretionary one. That left only the possibility that the discretionary refusal was unconstitutionally motivated by racial bias. As to that possibility,
Wade
imposes upon a defendant the burden to do more than merely allege unconstitutional motive in order to require judicial inquiry. A defendant must go further and make “a substantial threshold showing,” failing which he is “not entitle[d] [] to a remedy or even to discovery or an evidentiary hearing.”
Id.
— U.S. at-,
Here, the district court did not err in determining that Wallace had not made the required showing, and on that basis, in declining to give him the downward departure he sought as remedy. He made the allegation of racial bias, but he supported it with but a single instance of the same United States Attorney’s Office having recently moved for downward departure in behalf of
III
Wallace also makes several other constitutional, and statutory, challenges to his sentence, all related to the use of “cocaine base” in 21 U.S.C. § 841(b).
First, Wallace charges that the demonstrated 100 to 1 sentencing ratio of “cocaine base” to “cocaine powder” in § 841(b) violates the Equal Protection Clause because African Americans are disproportionately sentenced under the stiffer sanction. Second, he claims that the term “cocaine base” as used in 21 U.S.C. § 841(b) and U.S.S.G. § 2D1.1 is unconstitutionally vague. Third, he contends that the 100 to 1 sentencing ratio of “cocaine base” to “cocaine powder” in 21 U.S.C. § 841(b) constitutes racial genocide in violation of 18 U.S.C. § 1091. Wallace’s first two claims are foreclosed by direct circuit precedent.
United States v. Thomas,
IV
For the foregoing reasons, we affirm the sentence imposed by the district court on James Darnell Wallace.
AFFIRMED.
Notes
. The relevant part of section 5K of the United States Sentencing Commission, Guidelines Manual (USSG) is § 5K1.1 which states in part: "Upon motion of the government stating that the defendant has provided substantial assistance in the investigation or prosecution of another person who has committed an offense, the court may depart from the guidelines.” USSG § 5K1.1.
. Rule 35(b) allows courts, on motion of the government made within one year of the imposition of the sentence, to reduce a sentence to reflect a defendant's subsequent, substantial assistance in the investigation or prosecution of another person who has committed an offense.
