Rep. Thaddeus McCotter, R-Mich. will launch his presidential campaign on July 2, making him the third sitting member of the House to run for the White House in 2012.
McCotter will make his bid official in his home state of Michigan, according to a knowledgable source in the campaign who declined to be identified.
The five-term congressman has made stops in several of the early primary states and participated in the Republican Leadership Conference in New Orleans earlier this month. He joined the Iowa Tea Party bus tour this week during a stop in Ottumwa, Iowa.
During the stop, he told the Des Moines Register that he thought there was room for more conservative candidates like him in the race.
McCotter caused a stir at the Ames Straw Poll campaign space auction last week when he attempted to anonymously secure a key place for the August event, according to The Iowa Republican.
His representative was eventually forced to reveal her client after the other campaigns, who thought the anonymous bidder was for an undeclared candidate such as ex-Alaska governor Sarah Palin or Texas governor Rick Perry.
McCotter reportedly paid $18,000 for the prime location that ex-Arkansas governor Mike Huckabee occupied during the 2007 Ames Straw Poll.
Huckabee's showing in the straw poll helped boost his profile in the state. He later won the 2008 Iowa Caucuses.
The avid Beatles fan and guitar player served in House Republican leadership as the policy chairman from 2006 until 2010.
Reps. Michele Bachmann, R-Minn., and Ron Paul, R-Texas, have also launched presidential campaigns. A sitting House member has not won the presidency since President James Garfield in 1880.