Nielsen data showed sharp summer declines and a year-long slide that leaves him trailing rivals such as Fox News’ Greg Gutfeld and CBS star Stephen Colbert.

Jimmy Kimmel’s recent suspension from late-night TV is just the latest time on-air comments have gotten a host in trouble.

President Donald Trump on Thursday announced plans to station U.S. troops back in Afghanistan. The president, who campaigned on minimizing U.S. involvement in foreign entanglements, said he is in ...