President-elect Donald Trump will attend a SpaceX Starship launch Tuesday. The rocket company is owned by Trump booster Elon Musk.

Elon Musk's SpaceX launched its giant Starship rocket to space from Texas on Tuesday, advancing the ship's spaceflight abilities but botching an attempt to bring its booster back to land as U.S. President-elect Donald Trump watched from the company's rocket facilities.

The president-elect’s appearance in Texas demonstrates the growing closeness between the two billionaires, and Mr. Musk’s increasing influence in Mr. Trump’s orbit.