After a brief silence, Musk is back in the political arena, taking aim at Trump’s priorities and mocking Iran’s Supreme leader.

Elon Musk's image isn't what it used to be. The Tesla CEO's feud with President Donald Trump risked worsening his already underwater popularity, and new polling shows that even the apparent peace between the once-friends hasn't repaired Musk's standing with Republicans.

Trump row, Silicon Valley founder Philip Low predicts his former friend will seek retaliation against the president.