Mark Allen Callahan (born May 11, 1977) is an American politician and perennial candidate. He was the Republican nominee in the 2016 United States Senate election in Oregon. He is an information technology consultant based out of Portland, Oregon.
Mark Allen Callahan (born May 11, 1977) is an American politician and perennial candidate. He was the Republican nominee in the 2016 United States Senate election in Oregon. He is an information technology consultant based out of Portland, Oregon. (en)