Arizona's U.S. Sen. Mark Kelly and his twin brother, Scott Kelly, slammed Elon Musk after he insulted another astronaut on X.

Mark Kelly (D-Ariz.) and his brother, Scott Kelly, both retired astronauts ... that the Biden administration “left” two astronauts in space “for political reasons.” ...

Elon Musk claimed astronauts were left on the International Space Station for political reasons, sparking a disagreement with Sen. Mark Kelly and his twin brother, Scott Kelly, both retired ...

Mark Kelly (D-Ariz.) and his brother, Scott Kelly, both retired astronauts ... Mogensen had pushed back on Musk’s claim that the Biden administration “left” two astronauts in space “for political ...