CPAC has been in the news as thousands gather for the conservative movement. Here's what to know about the event and what Elon Musk said.

When he is not sharing memes of himself as a conquering Roman centurion or shrieking while brandishing a chain saw onstage at a CPAC conference, Elon Musk occasionally adopts the pose of a reasonable moderate offering an open hand of compromise that Democrats slap away.