>> i would like to bring up, if i might, governor sarah palin. >> reporter: tonight donald trump unveiling the newest feather in his campaign's cap. >> thank you so much. so great to be in iowa. >> an endorsement from former alaskan governor sarah palin. >> are you ready to make america great again? >> reporter: heating up the republican race with just 13 days to go before the iowa caucus. and palin's not mincing words. >> you ready for a commander in chief who will let our warriors do their job and go kick isis' [ bleep ]? >> reporter: they are close for years, both former reality stars. trump on "the apprentice" of course, and palin on "sarah palin's alaska." and she recently sang his praises on her talk show "on point with sarah palin." polls. >> thank you. >> reporter: the reaction in the everyone is so pumped. the new york "new york daily news" that will hit stands tomorrow. endorsement likely