Patrick Joseph "Pat" Buchanan is an American politician, author, syndicated columnist and broadcaster. Buchanan was a senior adviser to American presidents, Nixon, Ford and Reagan, and was an original host on CNN's Crossfire. He sought the Republican presidential nomination in 1992 and 1996. He ran on the Reform Party ticket in the 2000 presidential election.

He co-founded The American Conservative magazine and launched a paleoconservative foundation named The American Cause. He has been published in Human Events, National Review, The Nation and Rolling Stone.