Elon Musk arrives for the president's address to a joint session of Congress. (Saul Loeb/Agence France-Presse/Getty Images) Elon Musk, wearing a suit and dark blue tie, just arrived to applause ...

Elon Musk is pushing the envelope of election law with his latest limited-time offer to swing-state residents. The billionaire stumping for Donald Trump is dangling $100 to verified registered ...