"I don’t want to call Hunter Biden. I don’t want to call Joe Biden. I want someone to look at this when this is done," Graham told reporters on Capitol Hill.
"I don’t think it’s wrong for us to look at the Biden connection in the Ukraine, the $3 million given to the vice president’s son by the most corrupt company in the Ukraine," Graham said. However, he added, "To my Republican friends, you may be upset about what happened in the Ukraine with the Bidens but this is not the venue to litigate that."
Republicans such as Senator Rand Paul (R., Ky.) have repeatedly threatened to subpoena Hunter Biden if Democrats follow through on their intention to summon former White House national security adviser John Bolton. Paul and colleague Ted Cruz (R., Texas) have suggested the idea of "witness reciprocity," allowing Democrats to call a witness to testify in exchange for a Republican witness.
Graham acknowledged he will need several Republican senators to vote with him to prevent a subpoena of Hunter Biden and that he doesn’t yet know of other senators who would join him.
The fate of possible votes regarding Bolton and other possible Democratic witnesses was still unclear. A group of moderate GOP senators, including Susan Collins of Maine and Mitt Romney of Utah, have signaled support in the past for allowing witnesses at the trial.