Obama 'amused' by Tea Party rallies

President Barack ObamaBarack Hussein ObamaOvernight Energy: Dems ask Pruitt to justify first-class travel | Obama EPA chief says reg rollback won't stand | Ex-adviser expects Trump to eventually rejoin Paris accord Overnight Regulation: Trump to take steps to ban bump stocks | Trump eases rules on insurance sold outside of ObamaCare | FCC to officially rescind net neutrality Thursday | Obama EPA chief: Reg rollback won't stand Ex-US ambassador: Mueller is the one who is tough on Russia MORE struck a hyperpartisan note Thursday, telling Democrats that he was "amused" by the Tax Day Tea Party rallies.

Obama, addressing a Democratic National Committee (DNC) fundraiser in Miami, did little to endear himself to the Tea Party groups protesting around the country, saying "they should be saying thank you" because of the tax cuts he has signed into law.

The president went as far as to say that this week's special election in Florida, which was won by Democrat Ted Deutch, was portrayed by Republicans as "a referendum on healthcare, a referendum on the stimulus."

"And you know what, it was," Obama said to applause.

Obama continued to dare Republicans to run on a platform of repealing healthcare reform, telling the audience "they won't be very successful."

Despite the president's confidence, DNC Chairman Tim KaineTimothy (Tim) Michael KaineSave lives, restore congressional respect by strengthening opioids’ seizure Overnight Finance: Lawmakers, Treasury look to close tax law loopholes | Trump says he backs gas tax hike | Markets rise despite higher inflation | Fannie Mae asks for .7B Bipartisan Senate group says they have immigration deal MORE told the crowd that they should assume that Democrats are "running into a headwind" in the November midterms.

Kaine said Democrats, who gathered at one of two fundraisers that raised about $2.5 million for the party, are the underdogs this year.

"You don't mind being the underdog, you don't mind running into a headwind, you don't mind an uphill race," Kaine said. "You don't mind being the underdog. Becasue that's what Democrats do. We are the underdogs."

Obama also continued to try to make the case that a vote against financial regulatory reform is a vote on behalf of Wall Street and against Main Street.

"Every member of Congress is soon going to have to make a decision, but the choice is going to be very simple between special interests and the American people," Obama said.

The president was returning to Washington on Thursday night.