Nick Clooney, a Democrat and former television anchorman in Cincinnati, hopes to succeed Democratic Rep. Ken Lucas, who is retiring after three terms. The district, which is just south of the Ohio River, is generally considered Republican country, but the Cook Political Report, a nonpartisan analysis of congressional races, considers the race a "toss-up."
In all, 64 percent of Clooney's campaign war chest has come from out of state, according to the Center for Responsive Politics.
A spokesman for Geoff Davis, a Republican who is also vying for the seat, denounced the celebrity money, saying the donors do not represent the district.
NBC reportedly holds celebs hostage to Jimmy Fallon's show
Boston schools pull out free condoms over wrapping complaints