Britney Spears’ ex-Husband Jason Alexander Part of Capitol Protest

Britney Spears‘ ex-husband — the one who isn’t Kevin Federline — had a front-row view to the attempted coup at the Capitol … because he was part of the pro-Trump protest.

Jason Allen Alexander — whom you might remember for being married to Britney for 55 hours after their wild, 2004 Sin City wedding — trekked to D.C. for Wednesday’s show of support for President Trump, which turned into an attempted coup.

Jason looked proud to be there … snapping selfies in his Trump 45 beanie.

What’s unclear … if Jason actually was part of the riotous mob that breached the Capitol. If he was, it’s likely the feds are going after him.

Seems Jason’s big on attending demonstrations … when we last saw him back in August, he had joined the #FreeBritney movement … hanging out in the crowd gathered outside the L.A. courthouse where a hearing was taking place on her conservatorship.