Billionaire activist Tom Steyer will push $30 million into an effort to boost millennial voter turnout in this year's midterm elections to help Democrats take over the House.
The former hedge fund manager, who made the announcement Monday, will not run for office in California this year. Rumors had swirled around whether he would challenge Sen. Dianne Feinstein for her seat later this year.
"I'm not going to run for office in 2018. That's not where I can make the biggest difference," Steyer said at a news conference in Washington.
Steyer raised his profile by launching national advertising campaigns in October calling for President Donald Trump's impeachment. He reportedly spent about $20 million on his Need to Impeach campaign and pressured Democrats to remove Trump from office if they win the House majority in the 2018 elections.
His voter turnout campaign, called NextGen Rising, said it will target more than 30 seats. It said it aims to "register more than 250,000 young voters."
"I'm putting $30 million behind NextGen America's youth organizing program to unleash the full political power of young voters ... They are horrified by what's happening in Washington D.C.," Steyer said on Monday.
The campaign will be active in 10 states: Arizona, California, Florida, Iowa, Michigan, Nevada, New Hampshire, Pennsylvania, Virginia and Wisconsin, Steyer said.
In a statement, Republican National Committee spokesman Michael Ahrens said "Tom Steyer can light as much of his money on fire as he wants," but it "doesn't change that Democrats like Nancy Pelosi view him as a distraction."
"If Democrats' message for 2018 is a baseless impeachment threat that the majority of voters disagree with, they're going to lose," he said.
Steyer, who retired from his hedge fund Farallon Capital in 2012, has pushed millions of dollars to Democratic candidates and causes in recent years. He started NextGen America, a political organization that supports liberal positions on climate change, immigration and health care, among other issues.
The activist said he will also "redouble" the effort to push for Trump's impeachment. He called the president a "clear and president danger to the institutions of our democracy."
Efforts to publicize the campaign include delivering a copy of Michael Wolff's explosive new book, "Fire and Fury: Inside the Trump White House," to every congressional office. The book makes numerous claims about Trump's competence and fitness for office that the White House has vehemently fought.
Steyer said he will still support Democrats who do not promise to impeach Trump, saying there will be no "litmus test."
Steyer acknowledged on Monday that the impeachment calls "make some of our friends and allies in this city uncomfortable." For example, Rep. Jim Himes, D-Conn., has said "the impeachment message right now is not helpful" for Democrats' efforts to win a House majority, according to The Wall Street Journal.
Steyer argued that Americans want to see Trump removed from office. He added that he believes fighting Trump's policies and pushing to remove him from office can happen simultaneously.