The party of the next guy has no next guy.For more than two generations, the Republican presidential nominating process has had an immutable internal logic to it: The next guy in line gets the nomination. That's how every Republican president of the post-Eisenhower era has won his party's nomination and how just about every GOP presidential nominee since Thomas E. Dewey (1944 and 1948) got to the top of the ticket. It's certainly how Barack Obama's two opponents, Sen. John McCain and former Gov.