Elon Musk suggests cognitive testing for elected officials. Stelter re… CNN 0 17 12.26 02:47 https://www.youtube.com/watch?v=-oebw2Qf7Lc + 1 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 1 Elon Musk suggests cognitive testing for elected officials. Stelter reacts