The former Massachusetts governor says Obama cautioned him about how "mean and dehumanizing" a presidential campaign can be

• Full Iowa caucuses results • DNC chair calls for a recanvass in Iowa • Opinion: NH primary is still up for grabs • Prank callers and internet trolls sought to sow chaos on Iowa caucus night

The former Massachusetts governor says Obama cautioned him about how "mean and dehumanizing" a presidential campaign can be
• Full Iowa caucuses results • DNC chair calls for a recanvass in Iowa • Opinion: NH primary is still up for grabs • Prank callers and internet trolls sought to sow chaos on Iowa caucus night