Health and Human Services Secretary Robert F. Kennedy Jr. clashed with Rep. Mark Takano (D-Calif. during a congressional hearing over concerns about President Trump's mental health and ability to perform his duties. Takano argued that recent social media posts suggest that the president is mentally unwell. Kennedy responded by invoking former President Joe Biden's "delusional" behavior, referring to a recent incident where Biden thought a black man resembled former President Barack Obama. The 25th Amendment allows for the removal of a president deemed unable to perform its duties under scrutiny.