WASHINGTON -- Republicans on Friday slammed Democratic Rep. Rick Nolan for planning a fundraiser with Peter Yarrow, the singer from the 1960s band Peter, Paul and Mary, who admitted in 1970 to having improper relations with a 14-year-old girl.

Nolan is hosting a fundraiser April 25 with Yarrow, who is playing at Duluth's Sacred Heart Music Center for a concert afterwards. The fundraiser, at Bowery Brothers Pub in Duluth, asks for a suggested donation of $50.

Yarrow has vexed Democratic fundraisers before. Last year, Republicans criticized Martha Robertson, a New York Democrat, for planning an event with him, according to the Buffalo News. She refused to cancel the event and Republicans ran an attack ad against her for it.

That same article points out that Yarrow has donated almost $15,000 to Democratic candidates since 1998 and he performed for Obama volunteers during the 2008 presidential campaign.

"Rick Nolan should immediately cancel his fundraiser with a convicted child molester and apologize to his constituents," said Tyler Q. Houlton at the National Republican Congressional Committee, in an e-mailed statement.

Nolan's spokeswoman deferred comments to the Democratic Congressional Campaign Committee.

"This is a desperate attempt from Stewart Mills to distract from the fact that he is personally offended when millionaires like himself are asked to pay their fair share," said Brandon Lorenz, in an emailed statement.

Mills is the Republican running to unseat Nolan, who is in his first term, though served in the U.S. House of Representatives previously between 1975 and 1981.