The panel said it is also investigating a 2008 trip to Turkey for congressional aides sponsored by the Turkish Coalition of America. After originally authorizing the trip, the committee disallowed it on the grounds the coalition employed a lobbyist.
Bachmann -- who ran for the Republican president nomination in 2012 and has announced she will not run for re-election in 2014 -- is under investigation for alleged campaign finance irregularities in 2012.
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NBC reportedly holds celebs hostage to Jimmy Fallon's show