Good morning to all of you. It is Sunday, January the 14th. I'm Ali Velsky. We're now just a day away from what is shaping up to be an historic Republican caucus in Iowa. The final polling ahead of tomorrow's contest is now out. If the trends in this poll hold, Donald Trump's going to pull off a win by an unprecedented margin for a Republican or a Democratic presidential

candidate in Iowa. This is the final NBC News, Des Moines Register, MediaCom, Iowa poll ahead of

tomorrow's caucuses. Trump, his lead is down ever so slightly, by the way. This is what was in

December 51. Now he's at 48, but you can still see he's

got a 28-point lead over his next closest competitor, Nikki Haley. Nikki Haley's first choice

support, meanwhile, rose from 16 to 20 points. Ron DeSanta's support has slipped three points

from last month, from 19 to 16. Vivek Ramoswamy is now below to, he remains below 10%.

The current record margin of victory in Iowa's Republican caucuses for a non-incumbent

candidate is 13 points.

That was set by Bob Dole in 1988.

So if Trump wins tomorrow by anything even remotely close to what these polls were predicting,

he's going to make history.

And that's in addition to the history that Donald Trump is already making in being the first

former president to be running for office while under criminal indictment.

But anything can happen in Iowa, the winter weather there is perilous to say the least.

And the caucus format can be challenging in terms of getting out the vote.

Here is how tomorrow is going to work. Iowa Republicans will hold caucus meetings in person

at more than 1,600 caucus sites this year.

At 7 p.m. local time, caucus goers in Iowa are going to check into their

corresponding precincts where they'll hear speeches from representatives for each of the candidates

before voting in a secret ballot. The Iowa caucuses mark the first time that Donald Trump

has returned to an election of any kind since he lost the 2020 presidential election,

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