Jonathan Christopher "Jon" Porter (born May 16, 1955), an American politician, was a Republican member of the United States House of Representatives, the first representative elected from the new 3rd Congressional District of Nevada.He won re-election in the 2006 midterm election against Tessa Hafen by a 48%–47% margin. On November 4, 2008, after three consecutive terms, he was defeated by Nevada State Senator Dina Titus, a Democrat and professor at the University of Nevada, Las Vegas.