By Steve HollandWASHINGTON (Reuters) - Faced with a new surging rival, Republican presidential candidate Mitt Romney is retur...

WASHINGTON (Reuters) - A crisis facing U.S. Republican presidential candidate Herman Cain threatened to escalate on Tuesday e...

WASHINGTON (Reuters) - Republican Chris Christie is to decide within days whether to launch a late run for president and appe...

WASHINGTON (Reuters) - Republican presidential candidate Michele Bachmann's strategy for dealing with rival contender Rick Pe...