Sen. Mitt Romney, R-Utah, was the lone Republican to vote against one of President Trump’s judicial nominees earlier this week.

Romney voted against Michael Truncale, who was confirmed 49-46 on Tuesday morning to the Eastern District of Texas, for years-old comments he made about former President Barack Obama.

In 2011, Truncale called Obama an "un-American imposter.” He told the Senate Judiciary Committee he was "merely expressing frustration by what I perceived as a lack of overt patriotism on behalf of President Obama." Truncale also told senators he believed Obama was born in Hawaii.

Romney cited his 2012 presidential run as the reason he could not vote in favor of Trump's nominee.

“He made particularly disparaging comments about President Obama. And as the Republican nominee for president, I just couldn't subscribe to that in a federal judge," Romney told Politico. "This was not a matter of qualifications or politics. This was something specifically to that issue as a former nominee of our party."