nbc 's tracie potts is in washington fmr. vice presidential nominee :00-:06 "our next president of the united states, donald j. trump!" sarah palin... endorsing donald trump and his message: fmr. vice presidential nominee :09-:13 "doggone right, we're angry!! justifiably so!!!" presidential candidate :13-:14 "we're gonna give 'em hell." the palin endorsement could help trump win points with women and conservatives: "this just might be the kind of move that excites someone that supports donald trump but wasn't sure if they were going to go out and caucus on a cold night." trump's closest rival, ted cruz, refused to bad- mouth palin: presidential candidate :32-:38 "listen, i love sarah palin. sarah palin is fantastic. without her friendship and support, i wouldn't be in the senate today." cruz is getting some high-powered conservative support of his own. he's being introduced in iowa saturday by conservative talk show host glenn beck. on facebook, beck questions palin's endorsement. meantime, bernie sanders is itching for a gen