Former Massachusetts Gov. Mitt Romney's (R) campaign honeymoon appears to have ended, as other candidates for the Republican presidential nomination begin voicing open criticism of Romney. Romney, by virtue of his status as the putative frontrunner in the race, is now facing increasingly vocal criticism from his competitors, criticism that had otherwise been muted or nonexistent so far in the campaign. The attacks suggest that the campaign for the 2012 Republican nomination hasn't just begun, but has advanced to the point where candidates have started to throw elbows in order to jockey for position with primary voters. There was no...