In a speech given at a campaign event for Colorado Senate candidate Ken Buck on July 8, 2010, Tancredo said of President Barack Obama, "... the greatest threat to the United States today, the greatest threat to our liberty, the greatest threat to the Constitution of the United States, the greatest threat to our way of life; everything we believe in. The greatest threat to the country that our founding fathers put together is the man that's sitting in the White House today."