Karen Tumulty: Use your head, Joe Biden, not your hands

Joe Biden needs to cut it out. And so does the mob that is after him.The former vice president — and presumed front-runner-to-be in the 2020 Democratic primary — has a long history of putting his hands all over pretty much anyone who comes within reach. Women. Men. Children. Longtime friends. Perfect strangers.He calls it the trait of a "tactile politician." Longtime aides say it is simply "Biden being Biden." But a quick web search of "creepy Uncle Joe" finds an avalanche of video p