iowa apart including this year with a blizzard in the final days of the campaign and record cold temperatures expected tonight. a number of significant endorsements, florida senator marco rubio announced he's backing the candidate and ron desantis. doug burgum today doing same and former maryland governor, larry hogan endorsing nikki haley. the polling showing her running ahead of governor desantis and still behind the former president ahead. 88% saying they are extremely or are very enthusiastic compared to 32 for desantis and hail i respectively. john king will join us to look deeper into that, but first with all of the last-minute campaigning, cnn's jessica dean is with the desantis campaign and chad myers on the one key