and we're back in about 25 >>> it's 8:00 on "today." coming up, politics and palin. the former alaska governor opens up in her first television interview since endorsing donald trump. >> our next president of the united states, donald j. trump. >> we'll talk with her live, as she gets set to hit the trail with trump later today. >>> field of political dreams. tom brokaw takes us inside iowa's influence on choosing our country's presidential candidates. >>> plus, al's iowa adventure. >> why is it so big?