Mark Kelly

Growing up these days is hard, and young men are having a tough time. We need more positive role models in schools and in our communities. A lot of people have been working on this for a long time,...

I know what’s achievable in space and what isn’t. Golden Dome’s space-based intercept layer won’t work at the level nuclear defense requires. Before Congress commits taxpayers to potentially the mo...

I asked Jay Clayton about the 2020 election. If he can’t disagree with Trump when he’s not in the room, how is he supposed to do it when he’s in the Oval Office or the Situation Room? As DNI, the t...

I’m demanding an answer for why toxic chemical cleanups at Arizona military bases keep getting delayed. Drinking water at military bases across the country is contaminated with PFAS—forever chemica...

As AI becomes part of everyday life, we need to understand how these tools affect older Americans. AI has the potential to make a difference for seniors, families, and caregivers, but research hasn...

Congress overwhelmingly passed a bipartisan bill to lower housing costs and make homeownership more affordable in Arizona and across the country. But Trump called it a “big yawn” and is still refus...

Happy National Parks and Recreation Month, folks. Arizona has some of the most remarkable landscapes on Earth and they belong to all of us. I’ve seen a lot of things from space. The Grand Canyon is...

Space Shuttle Endeavour is where it belongs — stacked vertically again, with the external tank and solid rocket boosters and ready for launch. This is the way it deserves to be seen, and so many fo...

It was so great to welcome Arizona students from the @azcardinals Civics Matters program to the Capitol. My advice to them: get involved and don’t get discouraged.

1.5 million Arizonans are over age 60. For many of them, AI is already becoming part of everyday life for many older adults. But we need more research and data to fully understand its impact. This ...

For America’s 250th birthday, I joined @duchessofcameron to paint a section of the Grand Canyon in (edible) bronze as Arizona’s contribution to the @america250 Birthday Cake Project, a tribute to o...

Did you know today is Asteroid Day? Yes, it’s a real thing. In fact, American scientists are at the forefront of research that will enable us to better detect asteroids and protect us from parti...

13 years ago today, 19 Granite Mountain Hotshots lost their lives battling the Yarnell Hill Fire. We’ll always honor their bravery and sacrifice. I’m thinking of them, their families, and all of th...

Donald Trump doesn’t care if your rent is too high or if you can’t afford a home. He made that clear today.

Happy Father’s Day to all the dads out there. Of everything I’ve done in my life, being a dad to my girls and a grandfather to Sage is what I’m most proud of.

Before we can get AI policy right, we need the facts. My AI DATA Act will let workers and businesses know how AI is changing the economy and their jobs.

Donald Trump cares more about politics than our national security. Bill Pulte, who is fundamentally unqualified for the job, is about to be in charge of our intelligence and that only makes America...

A month of negotiations with Iran produced a page and half deal that nobody’s allowed to look at. As a member of the Armed Services and Intelligence Committees, I need to see the actual text to bel...

Fourteen years after DACA was created, and DACA recipients are still waiting for certainty in their lives. I won’t stop fighting until they get the pathway to citizenship they deserve.

@senmarkkelly on how we got here: Trump tore up the JPCOA in 2018, got us into an unauthorized war with Iran this year, and now Americans are facing historic price hikes across the board because ...