US Senator Bill Cassidy, Republican of Louisiana, attends a US Senate Finance Committee business meeting to consider the nomination of Robert F. Kennedy, Jr. to be Secretary of Health and Human Services, on Capitol Hill in Washington, DC, February 4, 2025. US President Donald Trump's embattled health secretary pick, vaccine conspiracy theorist Robert F. Kennedy Jr, passed a crucial test in his confirmation bid on Tuesday as senators voted to advance his nomination to the floor. (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images)