As the billionaire and 'First Buddy' to Trump aligns with the center of U.S. political power, it's unclear how his connections could affect several government investigations into his companies.

By Mike Spector, Rachael Levy, Marisa Taylor and Chris PrenticeNEW YORK/WASHINGTON (Reuters) - Last month, in the waning ...

Elon Musk faces numerous federal investigations related to his companies, including securities violations, Tesla's Autopilot ...