Rep. Justin Amash (I-Mich.) announced Tuesday that he has launched an exploratory committee to seek the Libertarian Party’s presidential nomination, his strongest indication yet that he will mount a third-party White House bid.

“Today, I launched an exploratory committee to seek the @LPNational’s nomination for president of the United States. Americans are ready for practical approaches based in humility and trust of the people,” Amash tweeted.

“We’re ready for a presidency that will restore respect for our Constitution and bring people together. I’m excited and honored to be taking these first steps toward serving Americans of every background as president,”

The former Republican congressman has been toying for months with the prospect of waging a third-party campaign for the presidency and has come under an avalanche of pressure from Libertarians to throw his hat into the ring.

“He’d be acceptable to a lot of Libertarians, but also to a lot of those ‘Never Trump’ Republicans,” Joe Hunter, communications director for former New Mexico Gov. Gary Johnson’s Libertarian presidential run in 2016, told The Hill this month. “Of all the candidates out there, he’s at the top of the list of those that can bring us to a tipping point, where a third party or independent candidate convinces the media and donors that he or she can be relevant and have an impact on the race.”

Amash has centered his political career around libertarian values, advocating for less government intervention in daily life and sharp cuts in federal spending to offset an exploding deficit.

The Michigan lawmaker has seen his national profile soar under President Trump with his vocal attacks against the White House. Last year, the Republican-turned-Independent said he would back Democrats in their impeachment effort.