Sunday's edition of The New York Times Magazine examines the relationship between President George W. Bush and his vice-president, Dick Cheney. In the course of their up-and-down relationship, the author notes that Cheney offered to step down from the ticket in 2004 to allow Bush to have another vice-president for the re-election.
Bush's pick, according to the article, was Senate Majority Leader Bill Frist, the doctor/senator from Tennessee. But Bush finally decided not to switch horses in mid-stream and kept Cheney on the ticket.
Frist was known to have presidential ambitions and considered running after he left the senate and returned to Tennessee. But had he been vice-president he would certainly have been in a position to challenge John McCain for the nomination in 2008 and we might never have heard of Sarah Palin.