State Rep. Kurt Bills is the Minnesota Republican Party's pick to face U.S. Sen. Amy Klobuchar in the November election. The first-term Republican nabbed the endorsement to challenge the Democratic incumbent after two ballots at the Minnesota GOP Convention Friday in St. Cloud.

Neither Amy Klobuchar, D-Minn., or her Republican challenger Kurt Bills brought up new issues in the last debate of Minnesota's U.S. Senate race Sunday night at St. Paul's Fitzgerald Theater -- the fourth and final debate between the two before Election Day.

Just moments after the polls closed in Minnesota, the U.S. Senate race was projected for incumbent Sen. Amy Klobuchar, D-Minn., in her race with GOP challenger Kurt Bills, CBS News reports. She won with about 65 percent of the vote to Bills' 30 percent.

In an hour-long debate hosted by Minnesota Public Radio on Thursday, DFL Sen. Amy Klobuchar and Republican challenger Kurt Bills mixed it up to hooting and cheering supporters on both sides. Bills sharply criticized the incumbent's stances and his fans booed her, and she shot back with pointed words of her own.

U.S. Sen. Amy Klobuchar's challenger, State Rep. Kurt Bills, says he wants 10 or 12 debates before the November election. But the incumbent has agreed to only two so far. Some political analysts say Klobuchar's strategy is to ignore her opponent.

DFL Sen. Amy Klobuchar's opponent Kurt Bills is pointing to report on the conservative Daily Caller website that suggests Klobuchar, former Hennepin county attorney, had enough evidence to prosecute now-convicted Ponzi scheme leader Tom Petters but declined to prosecute, MPR reports. Her re-election campaign says the allegations made in a story on the website are "inaccurate."

Bills is a first-term representative from Rosemount, where he teaches high school economics. He says he wants to bring Economics 101 to Washington. He joins two other Republicans hoping to be the party's challenger to U.S. Senator Amy Klobuchar.

At an MPR-hosted debate Sunday, Republican challenger Kurt Bills had pointed words for Sen. Amy Klobuchar, D-Minn., who holds a big lead in polls. "When you're sitting here as a Democrat in the United States Senate from Minnesata, and you're so well liked and you have these numbers, why are you not leading?" Bills asked Klobuchar.