GOP Rep. Matt Gaetz and Rep. Adam Kinzinger got into a heated back and forth on Twitter as the two argued over the future of the Republican Party. Gaetz has emerged as one of Trump’s most loyal allies in the House while Kinzinger has been one of his fiercest critics. Kinzinger has even gone so far as to launch a political action committee that focuses on going after pro-Trump Republicans.

The Twitter exchange was sparked between the two Republicans after Kinzinger specifically called out Gaetz as one of the pro-Trump GOPers his PAC would be focused on defeating in the upcoming election cycle. Gaetz fired off on Twitter that he welcomed the challenge telling Kinzinger to “F—ing bring it.”

Fox News reports:

Pointing to the Jan. 6 attack on the U.S. Capitol by right-wing extremists and other Trump supporters to unsuccessfully disrupt congressional certification of Joe Biden’s Electoral College victory over Trump, Kinzinger said earlier this month in a video announcing his new “Country First” PAC that “this is no time for silence. Not after the last month. Not after the last few years. Someone needs to tell the truth.”

Kinzinger, who was first elected to Congress as part of the conservative Tea Party wave of 2010, has lamented that “today’s Republican Party is not the one I joined.”

“The future of the GOP is on the line,” he emphasized as he launched his PAC. “Let’s take back our party.”

Gaetz, who was first elected in 2016, has become one of Trump’s biggest allies in Congress. Last month he headlined a large rally outside the Wyoming state Capitol to target Rep. Liz Cheney in her home state. Cheney was the most high profile of the 10 House Republicans to vote to impeach Trump.

To read more about Kinzinger’s PAC against pro-Trumpers click HERE.