Clinton was caught on camera snickering as Trump vowed to change "the name of the Gulf of Mexico to the Gulf of America."

As Barack, 63, Bill, 78, and Hillary, 77, entered the U.S. Capitol rotunda in Washington, D.C., on Monday for the 78-year-old’s historic swearing-in ceremony, people at the Capitol One Arena could be heard loudly booing.

Former President Bill Clinton was spotted at the inauguration of Donald Trump. See pictures of the former President here.