It isn’t often that Sen. Michael Bennet (D-Colo.) raises his voice, but he sure did Wednesday while taking Robert Kennedy Jr. to task for some of the more outlandish conspiracy theories he’s spent a career breathing life into.

Robert F. Kennedy Jr. said he "probably" agrees that Lyme Disease was originally a bioweapons engineered by the military during a confirmation hearing Wednesday with the Senate Finance Committee. Colorado Democratic Sen.

Robert F. Kennedy Jr. conceded Wednesday he “probably did” once say that Lyme disease is a “military-engineered bioweapon.” Kennedy’s answer came in response to a fiery line of questioning by Sen. Michael Bennet at his confirmation hearing to become Donald Trump’s health secretary.

If approved, Kennedy will control a $1.7 trillion agency that oversees food and hospital inspections, hundreds of health clinics, vaccine recommendations and health insurance for roughly half the country.

U.S. Sen. Michael Bennet joined fellow Democrats on Wednesday morning in hammering Robert F. Kennedy Jr. on his changing position on abortion and his history of platforming conspiracy theories and

"All of a sudden, boom, he emerges and just unleashes on somebody. He went off on Republican Senator Ted Cruz a couple of years ago. Remember that?”

Robert F. Kennedy Jr. will stand before the Senate Finance Committee on Wednesday and the Senate Health, Education, Labor and Pension Committee Thursday as President Donald Trump's nominee to lead the Department of Health and Human Services.

Robert F. Kennedy Jr., President Trump’s nominee for health secretary, repeatedly confused Medicare and Medicaid. He also tried to convince senators he was not against vaccines, despite past statements.

Mr. Kennedy appears to have most Republicans behind him as he seeks the job of health secretary, though he couldn’t escape his past stances on vaccines and abortion.

Robert F. Kennedy Jr. is one of the most famous of Trump’s nominees, and certainly one of the most contentious. But the first day of his confirmation hearing wasn’t oriented around the kinds of personally agonizing questioning that defined Pete Hegseth’s confirmation process.

Robert F. Kennedy's nomination will put Republican lawmakers' loyalty to the test, as the former Democrat holds a range of unorthodox positions that could alienate both conservatives and liberals.