“They shook hands. But Obama didn’t let go, leading Lieberman — cordially — by the hand across the room into a corner on the Democratic side, where Democratic sources tell ABC News he delivered some tough words for the junior senator from Connecticut…Reporters watched as Obama leaned closely in to Lieberman, whose back was literally up against the wall.” Taking a page from the LBJ school of physical persuasion, Sen. Obama seems to warn Joe Lieberman privately about the perils of Zelling out. Update: Holy Joe pushes back. Hard to imagine Lieberman remaining a committee chair after November at this point.