Sen. Joni Ernst (R-IA) avoided saying whether she would commit to supporting former President Donald Trump if he wins her state’s caucuses.

In an appearance on NBC News’s Meet the Press on Sunday, Ernst was asked whether she would commit to supporting whoever the Republican nominee was, especially if it was Trump.

“Well, it’ll depend,” she responded when asked if she would support Trump if he’s the nominee. “I have gone round and round in my mind. I do think that President Trump is going to win. We see such a large margin. But it’s not a foregone conclusion. So we’ll see who comes out the winner here, in the Iowa Caucuses. We’ll know that, tomorrow night. And then, we’ll know how to move forward. But one thing we know, as Iowa Republicans, is that we cannot have Joe Biden in the White House for a second term.”

“Well, again, I am not going to say that,” she continued. “I need to review the candidates very carefully. We’ll see the margin. I guess I am assuming that President Trump wins, but it could be any one of these fantastic candidates. So, again, we’ll see who emerges. I’ve made up my decision on who I will caucus for. It is a private ballot and I would expect that we’ll have a very good turnout. But, again, Kristen, I’m not going to tip my hand to who I might be supporting.”