Clark is one of three Democrats seeking the nomination to unseat the first-term Republican Congressman. Her campaign now has nearly $420,000. Meanwhile, incumbent Republican Rep. John Kline has more than $1 million for his re-election bid while Democrat Rep. Collin Peterson has more than $750,000 on hand. Candidates who have not yet filed their fundraising reports for the first quarter have until Sunday.

Democratic U.S. Sen. Amy Klobuchar has reportedly raised $800,000 in the last three months and has $4.86 million on hand as she heads into the final three-week stretch before Election Day. The spokesman for Klobuchar's Republican challenger, Kurt Bills, says he won't release his financial report until he's required to do so next week.

State officials have opened an investigation following allegations that the Republican Party may have violated campaign finance rules. The Minnesota GOP is $2 million in debt. That includes $415,000 of debt that party officials reportedly failed to disclose. The Pioneer Press says the GOP could face federal penalties, as well.

The former state Senator faces former Rep. Rick Nolan and Duluth City Councilman Jeff Anderson for the Democratic nomination in August. MPR reports Clark came in third among the candidates in a straw poll on caucus night.

The talk show host's remarks about a law school student are helping to raise money on the campaign trail -- mainly for female Democrats. Tarryl Clark's campaign manager says a recent appeal rejecting Limbaugh's apology brought a faster-than-usual response from donors. Clark is among three Democrats vying to challenge Congressman Chip Cravaack.

Republican Kurt Bills goes into the the final weeks of his campaign for U.S. Senate against Sen. Amy Klobuchar with a meager $68,262 in the bank compared to Klobuchar's campaign that has $4.8 million on hand.

A conservative nonprofit group founded by former U.S. Sen. Norm Coleman is infusing $500,000 more into the re-election campaign of Republican Rep. Chip Cravaack.