IRS whistleblower claims he felt 'handcuffed' during 5-year investigation into Hunter Biden

In an exclusive interview with CBS News, a 13-year IRS case agent who says he handled "95 percent" of the tax evidence in the Hunter Biden case said he "felt handcuffed" when it came to pursuing leads that would potentially implicate President Joe Biden.

"When you're prevented from going down certain roads, I guess I don't know what could have been found if we were not hamstrung or not handcuffed," Special Agent Joseph Ziegler told CBS News.

Ziegler, who was previously only known as "Agent X," revealed his identity on Wednesday after lawmakers demanded he do so.

Ziegler said he and his supervisor Gary Shapley uncovered evidence that "supported felony and misdemeanor tax charges."

"I'm a Democrat. In the last presidential election, I actually did not vote," Ziegler said. "I thought it would be irresponsible of me to do so because I didn't wanna show bias one way or the other."

Watch the video below or at this link.