OPINION OF THE COURT

On January 17, 2002, a jury in the United States District Court for the Eastern District of Pennsylvania convicted Charles H. Ringwalt, III (“Ringwalt”) of two counts of income tax evasion in violation of 26 U.S.C. § 7201, three counts of willfully subscribing to false tax returns in violation of 26 U.S.C. § 7206(1), and one count of aiding and assisting the preparation of false tax returns in violation of 26 U.S.C. § 7206(2). On appeal, Ringwalt claims that: (1) the Government committed prosecutorial misconduct in its closing argument to the jury; (2) the Government failed to disclose exculpatory evidence before or during trial; (3) the District Court erred in limiting the testimony of his expert witness; and (4) there was insufficient evidence of willfulness presented at trial to sustain the jury’s verdict of guilty.

Ringwalt raised all of these claims before the District Court in his motions for judgment of acquittal and for a new trial. The District Court conducted an exhaustive analysis of each claim in a lengthy, written opinion and denied each of Ring-wait’s motions. See United States v. Ring *447 walt, 213 F.Supp.2d 499 (E.D.Pa. 2002). After a careful review of the record and the Parties’ arguments, we find no basis for disturbing the District Court’s thorough and well-reasoned opinion. Thus, we will affirm the judgment for substantially the same reasons set forth in Judge Robreno’s opinion.