Two-time U.S. Senate candidate Rob Maness is running for a Louisiana House seat in St. Tammany Parish.

His announcement Friday came after the Thursday night coming-out party for candidate Casey Revere, the parish’s justice of the peace in Ward 1, covering Madisonville, Goodbee and Covington. Both candidates are from Madisonville.

That makes three Republicans — along with previously announced Covington City Councilman Mark Wright — vying for the House District 77 seat in an Oct. 14 special election.

“Sadly, most of those at the (State) Capitol went there for the wrong reasons and want to preserve the status quo,” Maness said in his announcement statement. “I'll never back down, and I'll never give in to lobbyists or even party leadership when it’s time to do what's right. It's clear that sending a Republican to Baton Rouge is not enough; we must send leaders that will not give in to the special interests.”

Revere said: "We are in a time of budget reform for state and local governments, and we need someone who is going to stand up for this area when budget cuts are being made. My main emphasis is to help improve the infrastructure in this area. The roads and drainage are not suitable for the amount of development that has occurred in the past decade in our district, and I will fight to make sure that the people’s voices are heard.”

Rep. John Schroder, R-Covington, stepped down from the District 77 seat to run for state treasurer, a position that opened up when Madisonville resident John N. Kennedy was elected to the U.S. Senate.

Maness retired as a colonel from the U.S. Air Force and later worked for Entergy Corp.

In his first foray into politics in 2014, he ran a surprisingly strong campaign as a tea party Republican in the race in which Bill Cassidy defeated Democratic U.S. Sen. Mary Landrieu’s bid for re-election. Since then, Maness has been mentioned as a possible candidate for nearly every open seat in Louisiana politics.

He ran for the U.S. Senate again in 2016 but was defeated by Kennedy.

A June survey by Baton Rouge pollster John Couvillon found that Maness was preferred by 20 percent of the district's respondents and was viewed favorably by 22 percent.

Wright, the only announced candidate at the time, was backed by 9 percent of the poll respondents, while 8 percent had a favorable opinion of him. But 72 percent of those polled were undecided.

Last year, President Donald Trump carried the district with 76 percent of the vote.

The district covers the western part of St. Tammany Parish, including Covington, Madisonville and Folsom. Eighty-seven percent of the registered voters are white.

The district's population has grown by 26 percent since 2010, when it was second-fastest-growing House district in the state, becoming more suburban than rural.

Follow Mark Ballard on Twitter, @MarkBallardCnb.