WASHINGTON — One-time college placekicker Jason Chaffetz wants to boot Republican House leaders off their path to promotions.

Chaffetz declared Sunday that he’s running to replace retiring House Speaker John Boehner – even though Boehner has chosen Majority Leader Kevin McCarthy as his successor – and upend the would-be GOP leadership slate.

It’s not a new role for Chaffetz. The 48-year-old chairman of the House Oversight and Government Reform Committee has never been shy about seeking leading roles in politics. He’s climbed the power ladder through a mix of media savvy and confrontations with some establishment favorites. And despite having strong family roots in Democratic politics – his father was the Utah co-chairman for Michael Dukakis’ presidential campaign in 1988 and was once married to Dukakis’ wife, Kitty – Chaffetz entered Congress in 2009 ideologically aligned with the tea party-tinged class that propelled the GOP into the House majority two years later.

It’s far from clear that Chaffetz will win enough support in the House’s complex selection process. Within moments of his announcement, Republicans friendly to McCarthy raised questions about his fitness for the post. But Chaffetz insists that the biggest House majority in decades needs an overhaul at the top, and that he’s called to lead it.

“I’ve had enough members who’ve come and said, ‘Please Jason, do this,”‘ Chaffetz said on Fox News Sunday. “‘We don’t want to fight internally. But realistically, we can’t vote to promote the existing leadership.”‘

His congressional investigations have raised Chaffetz’s prominence but also drawn criticism. The Republican field of White House candidates routinely cite the debate over whether to strip Planned Parenthood of federal funding, an issue that Chaffetz’s committee is probing but which some conservatives complain has produced no clear GOP win.

On another issue, Chaffetz angered some conservatives by briefly revoking a colleague’s subcommittee chairmanship when he and other Republicans defied party leaders in a trade bill vote.

“I think I learned from that lesson,” the Los Gatos, California, native and father of three said on “Fox News Sunday.” “We’ve got to win the argument and make the case, not just knock people over the head if they don’t do what we want them to do.”

In short order Sunday, McCarthy’s allies circulated a list of Chaffetz’s comments, such as his refusal to rule out an effort to impeach President Barack Obama. For his part, Chaffetz has loudly objected to McCarthy’s gaffe this week in which he suggested that the GOP-led probe into the 2012 attacks on a diplomatic outpost in Benghazi, Libya, had scored political points against Democratic presidential candidate Hillary Clinton. Clinton, the Democrats’ front-runner, was secretary of state at the time of the attacks, which killed four Americans.

Chaffetz also is tangling with the Secret Service as he leads a probe into security lapses at the White House and on presidential trips. The White House said Thursday that “significant concerns” have been raised by reports that in the days after a key hearing on the issue, more than 40 Secret Service employees looked at a job application Chaffetz submitted to the agency in 2003 that was later rejected. Homeland Security Secretary Jeh Johnson and Secret Service Director Joe Clancy have apologized to Chaffetz, but the congressman is urging criminal action.