Rep. Tim Walz (D., Minn.) admitted last month that Obamacare was failing his constituents and went against the Democratic National Committee (DNC) in the process.

Walz, who voted in favor of Obamacare, is now running for governor in Minnesota. In a video from last month, Walz claimed that he went against the DNC by saying that he was not going to tout the party's message on Obamacare as Democrats were under fire for the law.

"The DNC wanted the message to be the ACA [Affordable Care Act] is working fine and don't talk about the warts," Walz said. "I said I can't do that because it's failing my constituents in a lot of ways."

Minnesota has been hit hard by Obamacare, with the state's health insurance markets said to be on the brink of collapse last year. State officials had already predicted back in September 2016 that insurance rates would rise anywhere from 50 percent to 67 percent.

Waltz opposed the American Health Care Act passed in the House in May, and he tweeted his opposition to the Senate GOP health care bill on Monday, saying it was "fundamentally heartless."