If Clinton doesn't win, McCain has a clear path to the White House.
Chances for Clinton are higher than Obama to win the presidential contest in November. Clinton reminds of me of the Iron Lady, Margaret Thatcher.
Realistically, Obama will have a very difficult time to gain support especially from the Clinton camp. Clinton has drawn a large number of people who are moderates and independents.
McCain is a moderate politician. All he has to do is pick a conservative politician as his running mate. Undoubtedly, his new home is going to be the White House.
Conservatives are also preparing for a nasty fight to regain the Congress. Taking over the the House of Representatives could be a possibility. As for the senate, there are too many republican senators up for re-election this year.