U.S. Rep. Mac Thornberry (R–Clarendon) told a news outlet in Wichita Falls this week that he is unsure whether he will support President Donald Trump for re-election in 2020.

In an interview with KFDX-TV in Wichita Falls, Thornberry told reporters that he has spoken with Republicans who do not support President Trump. His comments were in response to a question about former Republican legislators who have endorsed Democrat Joe Biden’s presidential campaign in 2020.

“I hear it all the time. President Trump is very popular in our area, but a lot of folks are uncomfortable with some of the tweets, and the way he talks, and so forth. And my suspicion is that a lot of those Republicans have similar concerns,” Thornberry told KFDX-TV.

When reporters from the station asked whether he would vote for Trump in 2020, Thornberry did not say whether he would support the president’s campaign, but he went on to say he has supported both Republican and Democrat candidates in the past.

Thornberry’s comments come just a month after voters in the 13th Congressional District rejected his hand-picked successor in the Republican runoff, former lobbyist Josh Winegarner, siding with Trump-endorsed candidate Dr. Ronny Jackson. Thornberry, who at times has been a critic of the president, is not seeking re-election in 2020.

While Thornberry may be unsure of his vote, voters in Texas’ 13th Congressional District will have their opportunity to vote in the presidential race and in the race to replace Thornberry this November. Jackson is facing Libertarian Jack Westbrook and Democrat Gus Trujillo, a former Thornberry intern, in the general election.