Tesla stock rose Thursday. Elon Musk and trade were driving shares higher. Shares of the electric-vehicle maker added 0.4%, closing at $358.43, while the S&P 500 and Dow Jones Industrial Average rose 0.

Elon Musk arrived in the nation’s capital with the chain saw-wielding swagger of a tech titan who had never met a problem he couldn’t solve with lots of money, long hours or a well-calibrated algorithm.

Elon Musk leaves his government role after significant changes in Washington's bureaucracy, including substantial budget cuts. Despite achieving less than intended, Musk promises continued involvement,