Sen. Mitt Romney (R-Utah) made comments that many took to mean that he would vote against a subpoena in the investigation into Joe Biden's Ukrainian scandal.
"There's no question but that the appearance of looking into Burisma and Hunter Biden appears political," Romney said to reporters on Thursday.
"And I think people are tired of these kind of political investigations," he added, "and would hope that if there's something of significance that needs to be evaluated, that it would be done by perhaps the FBI or some other agency that's not as political as perhaps a committee of our, of our body."
Romney's skepticism presents a problem for the investigation, since he could be the deciding vote on the Senate Homeland Security and Governmental Affairs Committee.
Committee Chairman Sen. Ron Johnson (R-Wis.) issued the request for the subpoena on Monday for testimony from a witness about Hunter Biden's time on the board of Ukrainian energy company Burisma.
While Romney did not explicitly say how he would vote on the committee on the subpoena, if he voted against issuing it, the subpoena would not be approved.
Romney was also the lone Republican to vote in favor of convicting the president on the Democrats' articles of impeachment, which drew the ire of many Republicans and other supporters of the president.
Here's more on the Burisma scandal: