President Barack ObamaBarack ObamaBoos for Obama as Trump speaks at Boy Scout jamboree Feehery: Winning August Overnight Regulation: Trump looks to repeal Obama fracking rule | States sue EPA over chemical safety | Regulators mull future of 'Volcker Rule' MORE was in Missouri Thursday to help Democrats raise money but Republicans claimed his visit helped them even more.

The president attended two fundraisers for Senate candidate Robin Carnahan (D) in Kansas City. The campaign dropped the ticket prices for one, billed as a "grassroots reception," earlier Thursday in an attempt to boost attendance. The $250 tickets dropped to $99, while $35 tickets dropped to $17, according to the Kansas City Star. Attendees had to cough up to $1,000 a ticket for the second fundraiser in downtown Kansas City.

Carnahan, who is in a close race with Rep. Roy BluntRoy BluntOvernight Healthcare: Trump plays hardball on ObamaCare | Senators revive negotiations | CBO says repeal without replace would cost 32M insurance White House working with moderates on new Medicaid proposal Senate GOP revives negotiation over ObamaCare repeal and replace MORE (R-Mo.), welcomed the president in an embrace that carries as much political risk as it does financial reward.

For his part, the president kept up the sharply partisan tone he has employed on the trail of late, again slamming Rep. Joe Barton (R-Texas) and House Minority Leader John BoehnerJohn BoehnerSudan sanctions spur intense lobbying OPINION | GOP's 7-year ObamaCare blood oath ends in failure A simple fix to encourage bipartisanship in the House MORE's (R-Ohio) recent comments, and lumping Blunt in along with them.

"Sometimes I wonder if that no button is just stuck in Congress so they can't do what's right for the American people," Obama said. "The theory is if I lose, then they win. That's just old brand politics. It just takes us back."

At a congressional hearing last month, Barton called the White House's deal with BP to establish a $20 billion victim's compensation fund a "shakedown." And last week, BoehnerJohn BoehnerSudan sanctions spur intense lobbying OPINION | GOP's 7-year ObamaCare blood oath ends in failure A simple fix to encourage bipartisanship in the House MORE compared provisions of the financial reform bill to killing an ant with a nuclear weapon.

The president said Carnahan was "not going to Washington to represent the oil industry or the insurance industry ... or Wall Street," adding she would not even go there exclusively to represent his agenda.

Carnahan painted her race as a choice between someone who has stood up for families versus someone who has stood up for corporate interests.

And even as she stood next to the president, Carnahan sought to distance herself from Washington, telling supporters Obama understands that "the best way to begin fixing Washington was to elect people who were not caught up in the culture of Washington."

It was a stark change from Obama's last visit to the state in March, when he was there to raise money for state Democrats. Carnahan was in Washington, D.C. at the time and Republicans gleefully charged her with ducking the commander-in-chief.

Republicans are anxious to tie Carnahan to the president and Thursday's events give them that chance for the fall. Obama's approval ratting in the state is under 50 percent and key parts of his legislative agenda are deeply unpopular there. He lost the state to Republican John McCainJohn McCainOvernight Healthcare: Trump pressures GOP ahead of vote | McConnell urges Senate to start debate | Cornyn floats conference on House, Senate bills | Thune sees progress on Medicaid Overnight Healthcare: Trump pressures GOP ahead of healthcare vote | Study: Adding 0 billion to health bill not enough | McConnell urges Senate to start ObamaCare repeal debate Tuesday Senate GOP: McCain may return for ObamaCare vote Tuesday MORE in 2008 by less than a point.

"I believe he's helping me more than her," Blunt said of the president's visit on a conference call with reporters Thursday morning.