Elon Musk suggests cognitive testing for elected officials. Stelter reacts

Retiring Texas congresswoman and former House Appropriations Committee Chair Kay Granger has been experiencing “dementia issues” in recent months and is living in an independent living facility, her son Brandon Granger told the Dallas Morning News. In response, Elon Musk suggested elected officials undergo cognitive testing. CNN Chief Media Analyst Brian Stelter reacts. #CNN #News