A couple interesting points about TR and his "Bull Moose" campaign:

1. He is the only 3rd party candidate in modern history to have received more votes than either the R or D candidate. (He beat Taft badly.)

2. If the Republicans had had the good sense to nominate him, it's likely we would've had 4 more years of TR (maybe 8, because he wouldn't have done the River of Doubt expedition and likely would have lived longer) rather than Wilson. Possible we might have gotten into WWI sooner.