"The gloves are off — sort of. Barack Obama has signaled that the time has come for him to begin drawing distinctions between himself and Democratic front-runner Hillary Clinton," CBS news reports.

Obama's new video about Social Security is a good example.  He says:

"If we have failed to have a real, honest conversation about Social Security, it will not get fixed...I don't want to just put my finger out to the wind and see what the polls say.  I want to bring the country together to solve a problem."