Robert F. Kennedy Jr, the newly confirmed health secretary for the Trump administration who has called for sweeping policy changes, has made numerous false and misleading claims about vaccine safety.

U.S. Health and Human Services Secretary Robert F. Kennedy Jr. said he’s spoken directly with Gov. Greg Abbott about the measles outbreak in Texas, but neither are telling Texas families to get the vaccine that can stop the spread of the highly contagious respiratory illness.

In the 18 days since Robert F. Kennedy Jr. was sworn in as secretary of the United States Department of Health and Human Services, his department has postponed or canceled two major vaccine advisory committee meetings,