McCotter's new website lists five core principles that he intends to make the basis of his campaign:
1. Our liberty is from God not the government;
2. Our sovereignty is in our souls not the soil;
3. Our security is from strength not surrender;
4. Our prosperity is from the private sector not the public sector;
5. Our truths are self-evident not relative.
McCotter is perceived as one of the smartest members of the House, taking a cerebral approach to debates and never using a TelePrompTer to recite his speeches.
He currently sits on the House Financial Services Committee and was the chairman of the Republican House Policy Committee from 2006 to 2010, the fourth-ranked position in House Republican leadership when the GOP was in the minority during the Pelosi-led 110th and 111th sessions of Congress.
When he's in Washington, McCotter plays guitar in the bipartisan rock band the Second Amendments. The band has traveled to Iraq and Afghanistan to play for U.S. troops. After the announcement Saturday evening, McCotter will stay on stage and play his guitar with a local band, the Bluescasters, at the Independence Day celebration.
Prior to being elected to the House of Representatives, McCotter served in the Michigan State Senate. A devout Catholic, he is a graduate of Catholic Central High School, the University of Detroit and the University of Detroit Law School. He is an attorney by profession and his wife, Rita, is a registered nurse. The couple have three young children, George, Timothy, and Emilia, according to a biography on his congressional web site.
ABC News' Michael Falcone contributed to this report