*********** UPDATE 1 Lack of sleep can make anyone go a little batty. Seasoned broadcast veteran Tom Brokaw appeared on MSNBC’s Morning Joe and did a hilarious impression of one of Mitt Romney‘s trademark facial tics — the “white man overbite.” Prior to Brokaw’s imitation, the other panelists were discussing what the Republican hopeful had to do to corral conservative supporters. “They’ve got to figure out to gently nudge the