Being a Republican, those are the only ones I would be voting in.
1960: Richard Nixon, Barry Goldwater
1964: Barry Goldwater, Nelson Rockefeller, William Scranton
1968: Richard Nixon, Ronald Reagan, Nelson Rockefeller
1976: Gerald Ford, Ronald Reagan
1980: Ronald Reagan, George H.W. Bush
1988: George H.W. Bush, Bob Dole, Pat Robertson
1992: George H.W. Bush, Pat Buchanan
1996: Bob Dole, Jack Kemp
2000: George W. Bush, John McCain
2008: John McCain, Mike Huckabee, Mitt Romney, Rudy Giuliani
1960: Richard Nixon, Barry Goldwater
1964: Barry Goldwater, Nelson Rockefeller, William Scranton
1968: Richard Nixon, Ronald Reagan, Nelson Rockefeller
1976: Gerald Ford, Ronald Reagan
1980: Ronald Reagan, George H.W. Bush
1988: George H.W. Bush, Bob Dole, Pat Robertson
1992: George H.W. Bush, Pat Buchanan
1996: Bob Dole, Jack Kemp
2000: George W. Bush, John McCain
2008: John McCain, Mike Huckabee, Mitt Romney, Rudy Giuliani