GRIFFIN, Circuit Judge. In these consolidated appeals, defendants Nathaniel Gray and Gilbert Jackson appeal their jury trial convictions on multiple counts of violations of the Racketeer Influenced and Corrupt Organizations Act (“RICO”), 18 U.S.C. § 1962(d); conspiracy to obstruct and obstruction of interstate commerce by extortion in violation of the Hobbs Act, 18 U.S.C. § 1951; and “honest services” mail and wire fraud, in violation of 18 U.S.C. §§ 1341, 1343, and 1346. Gray also pleaded guilty to one count of income tax evasion, 26 U.S.C. § 7201. Defendants’ convictions stem from their alleged schemes to procure government contracts for corporate clients and financial gains for themselves by illicitly providing money and gifts to public officials in exchange for political influence in the bid for municipal contracts.

The paramount common issue raised by both defendants is whether certain evidence obtained through court-authorized electronic surveillance pursuant to Title III of the Omnibus Crime Control and Safe Streets Act of 1968 (“Title III” or “the Act”), 18 U.S.C. §§ 2510-22, was properly admitted at trial and, concomitantly, whether the district court abused its discretion by refusing to require disclosure of certain illegally intercepted conversations of defendants. Jackson and Gray also challenge the viability of their Hobbs Act convictions in light of our recent decision in United States v. Brock, 501 F.3d 762 (6th Cir. 2007). In addition, defendants raise numerous other issues in these appeals, including, inter alia, challenges to the sufficiency of the evidence; the district court’s denial of motions for severance, continuance, and mistrial; prosecutorial misconduct; claims of error in jury instructions; and cumulative error. Gray also appeals his sentences imposed under the advisory Guidelines.

For the reasons stated below, we reverse Gray’s convictions on Counts 30, 31, and 41 of the superseding indictment but affirm his convictions and sentences on all remaining counts. With regard to Jackson, we reverse his conviction on Count 41 but conclude that the remainder of his assignments of error are without merit and affirm his convictions on all other counts. Accordingly, we affirm in part, reverse in part, and remand these cases to the district court for resentencing consistent with this opinion.