In this clip you see what Joe Biden actually said in that meeting with donors where he warned about a Barack Obama presidency. Obama explained it as a “rhetorical flourish”, and the media’s not playing it so this is a must watch clip:
Do you really want a president that will invite such testing? Will your children be more secure, or less? Joe said he could name five possibilities, will the press ask him what he meant or which five? Don’t hold your breath.