the 2024 presidential election, Republican# candidates are making last minute appeals## in a frigid Iowa.

The National Weather# Service's warning of dangerously cold## wind chills as low as 45 below Monday night# when Iowa Republicans gathered for caucuses.

Lisa Desjardins has been braving that cold for# us and joins us now indoors at Indianola, Iowa,## South of Des Moines.

Lisa, in your travels# around Iowa, what have people told you about## this cold?

Is it going to deter them from# going out to caucus tomorrow night?

And is## there are there supporters for one candidate# who are seeing more motivated than others?

LISA DESJARDINS: Well, you can see behind me,## this is a room where forme supporters.

They came out in negative 21 degree# cold.

I can take it for a bit not cold.

It's a## bit like having toothpicks stabbed# at every portion of exposed body.

We came here and we saw a long line# of them enthusiastic to get in some## of them prepared and dressed for this# weather room.

Some of them frankly,## not and risking frostbite, the Trump# campaign did have some buses that the supporters could get on board# to warm themselves as they waited.

Now, one factor here is that former# President Trump has canceled three## events in the last day and a half.# So all the more reason when we talk## to folks we found they were very# excited and wanted to be here.

SAVANNAH FREESE, Iowa Republican Voter:# We're all new voters.

So you just turned## 18 and we feel like having we go having such a wonderful opportunity to see# such a big speaker on campus is worth it.

CHRIS WARD, Iowa Republican Voter: Support# Trump want to hear what he has to say.

But -- LISA DESJARDINS: do you think this weather# is going to affect the cau maybe older voters?

Or what do# you think is going to happ CHRIS WEARD: You know, I don't think so.# I think you see th thing is going to happen tomorrow.

You know, I# think as long as it's not snowing and you know,## and the weather and everything, the roads are# clear, I think people are still going to come ou LISA DESJARDINS: Now, there is a# lot of discussion in this state## about which voters are asking the# right question will not in the cold.

And I will say the most# confident campaign is th However, I have spoken to voters personally# Trump supporters who told me that they don't## think they will come out for two reasons.

Some# told me they think the former president is ahead## by so much that he doesn't really need their# help and why should they go out in the cold,## other say it just simply will be too cold.

And# either they themselves don't feel that they're## up for it.

They don't want to risk it or they're# with parents whose health they don't want to risk.

JOHN YANG: You mentioned the Trump campaign# had canceled some events because of the## weather.

What about the other campaign says this# preven LISA DESJARDINS: I think the campaign# most affected by this has been Nikki## Haley's.

Yesterday she moved all of her events# to b she canceled an event in Dubuque.# Even though we know roads are clear.

I will say there are still cars by the sides# of all the roads.

There is still black ice on## the highways here.

While Nikki Haley canceled that# event this morning, Ron DeSantis showed up in the## very same town not long after.

So Haley, I think# has some ground and makeup because of the weather.

JOHN YANG: We got the final Des Moines# Register NBC News poll last night.

The## last one before the caucuses, any# surprises in it?

And how does it## match up with what you're hearing# as you travel around the state?

LISA DESJARDINS: Well, I don't know if it's# a surprise or not, but certainly news that Nikki Haley has come into second place# now in this Des Moines Register and NBC News is sort# of seen as the gold standard here in Iowa.

And this poll is significant for her to sort of# establish herself as a potential second place,## but she's not ahead by much.

As you can# see, Donald Trump 48 points that's less## than half and then Nikki Haley# with 20 percent, DeSantis is 16.

Now, it's significant, of course, that Haley# is up in number two there.

But look at that## margin.

Donald Trump is still ahead by# almost 30 points.

In any other race,## we wouldn't really even be talking about it.# There's a question of enthusiasm that you've## been raising here, John.

And this poll indicated# that Donald Trump supporters en thusiastic when asked who was extremely# or very enthusiastic about their candidate,## 88 percent of Trump's supporters say yes.# They are very enthusiastic compared with a## lower number for Ron DeSantis, 62, and# a much lower number for Nikki Haley.

While she is gaining voters right now, and I can# tell you from experience, I've talked to them,## they are out there.

The question is, how# firm are they for Haley?

And it's going## to really matter what the weather.# There's a theory that perhaps she is## the most vulnerable to cold temperatures# last night, tomorrow nig JOHN YANG: Of course, we had a little# change in the lineup.

Late last week,## Chris Christie dropped out# on Thursday.

Was he much of## a presence in Iowa before this and does# this make any difference LISA DESJARDINS: No, Chris Christie actually# skipped over Iowa.

He never planned to do He didn't campaign here.

However, he did have# a few supporters.

I spoke with one of them.

think what's more significant is that while# polls show that the true undecided number## is maybe 5 percent of Iowa Republican# caucus goers.

I have talked to many,## many voters in every event DeSantis events, Trump# events just in hardware stores, who say they are## stuck between one or two Republican candidates,# including former President Trump.

I think there## are more persuadable voters here making late# decisions than many of these campaigns realize.

JOHN YANG: Lisa Desjardins staying warm in# Iowa right now.

Lisa, thank you very much.

And Lisa will be in Iowa on Monday night for live## coverage of the caucuses starting# at 11:00 p.m. Eastern he