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

Senator Mark Kelly's amendment to prevent tax cuts for those earning over $100 million was blocked by Senate Republicans.

Senator Mark Kelly criticized Trump's economic policies, highlighting how they impact Americans with examples like high egg ...

Sen. Mark Kelly (D-Ariz.) and his brother, Scott Kelly, both retired astronauts, on Friday called out tech billionaire Elon ...

Ariz., is talking to farmers and consumers about what President Donald Trump's tariff agenda could mean at home.

Elon Musk's moves and confirmations of Trump's Cabinet picks fuel a pushback from the left against Arizona's Democratic senators.

The Senate voted to confirm Robert F. Kennedy Jr. as President Donald Trump's Health and Human Services secretary.

The name is Mark Kelly. He's a Democratic Arizona Senator and NASA astronaut. His name is popping up along with Vice President Kamala Harris, California Governor Gavin Newsom and Michigan Governor ...

Sen. Mark Kelly visited Philly Shipyard, where he met with employees and talked about the importance of revitalizing the ...

After Vice President Kamala Harris became the presumptive Democratic presidential nominee in July, Arizona Sen. Mark Kelly was listed by betting websites as the leading contender to join Harris ...

U.S. Democratic Senator Mark Kelly released the following statement after voting against the confirmation of Kash Patel as ...

Arizona’s dairy producers and the people whose work revolves around that industry are among the potential casualties of President Donald Trump’s trade wars, Sen. Mark Kelly said Friday after a ...