Wisconsin Gov. Scott Walker (R) said on Tuesday that he will speak at the Republican National Convention, according to Madison, Wisconsin, television station WKOW.

Walker told WKOW that Trump will become the Republican nominee, and said that not voting for Trump would amount to a “de facto vote” for Hillary Clinton.

“From the delegates I’ve talked to here in Wisconsin, as well as those across the country, as much as there have been legitimate issues raised and concerns — the bottom line is most delegates are headed down the path that I am, which is that it’s a clear contrast,” he said. “It’s either gonna be Hillary Clinton or it’s gonna be Donald Trump and we have to decide who we want it to be.”

The Wisconsin governor could be one of just a few prominent GOP lawmakers to speak at the convention, as numerous Republicans have said they will skip the convention this year. Mitt Romney, George H.W. Bush, and George W. Bush have all said they will not be seen at the convention. And several Republican senators will avoid the convention at which Donald Trump will become the party’s presidential nominee.

Trump has also said that any of his former rivals in the Republican presidential primary who have not backed him will not be given a chance to speak at the convention. However, Walker has not exactly given Trump a resounding endorsement.

In June, Walker noted that Trump will not become the nominee until the convention and said that he may hold off on backing Trump until he walks back his attacks on the judge in the Trump University case.

Despite reports that Trump is struggling to secure Republicans to speak at the convention, he has insisted that there has been a lot of interest in speaking at the convention.