“As a Member of the House of Representatives for the last few years, I have fought tooth-and-nail against President Obama's agenda at every turn,” the letter reads in part. “I was the first Member of Congress to call him a socialist who embraces Marxist-Leninist policies like government control of health care and redistribution of wealth.”

Broun, who is running to fill the Georgia Senate seat being vacated by retiring Sen. Saxby ChamblissClarence (Saxby) Saxby ChamblissRepublicans say Democrats holding up disaster relief as 'Sandy payback' Ex-House Intel chair: Intel panel is wrong forum to investigate Trump's finances The Hill's Morning Report - Trump budget reignites border security fight MORE (R), has made a name for himself by describing Obama as an extreme leftist. Late last month, Broun accused the president of following the Soviet Constitution.

Obama taught constitutional law at the University of Chicago prior to becoming a U.S. senator.

Broun recently took steps to fill the role of former Rep. Ron Paul (R-Texas) as a top critic of the Federal Reserve. One of his first actions in the 113th Congress was to introduce legislation authorizing a massive audit of the central bank. He also may be considering a primary challenge to Sen. Saxby Chambliss (R-Ga.).

Broun said in the fundraising letter his voting record was “virtually identical" to Paul’s.

“Truth be told, except for foreign policy, Ron Paul's voting record and mine are virtually identical and I wear it as a badge of honor when I'm accused of being a strict constitutionalist who doesn't bend or break when it's tempting to do so,” he wrote.