Citizens for Responsibility and Ethics in Washington (CREW) filed a complaint asking the IRS to investigate if the Armenian National Committee of America-Western Region and the ANCA Endowment Fund violated their tax exempt status by engaging in prohibited political activity.  CREW's complaint says that the IRS should consider revoking their tax exempt status.

CREW alleges that ANCA, a 501(c)(4) organization, endorsed "15 U.S. Senate candidates and 211 U.S. House candidates on its shared website with ANCA-WR," a 501(c)(3) organization, before the 2008 elections.  The complaint also says that ANCA endorsed a presidential and vice presidential candidate in a press release. CREW further alleges that the ANCA Endowment Fund indirectly participated in the countless candidate endorsements of the ANCA by dint of the close financial and organizational ties between the two.

In addition to the complaints for prohibited political activity, CREW filed additional complaints with the U.S. Department of Justice, the Secretary of the U.S. Senate, and the Clerk of the U.S. House of Representatives against the organizations for alleged violations of the Foreign Agents Registration Act and the Lobbying Disclosure Act.