Union support still matters in Democratic politics and Kelly has moved to erase organized labor's doubts about him.

Arizona Sens. Ruben Gallego and Mark Kelly are urging the Biden administration to reconsider closing the Bureau of Indian Affairs Western Regional Office in Phoenix. The closure is part of a nationwide downsizing effort by the Department of Government Efficiency.

Senator Mark Kelly criticized mass firings at the VA, advocating for the reinstatement of employees vital to veteran care.

Senator Mark Kelly supports the PRO Act to improve American workers' rights to unionize, expanding union eligibility and enforcement.

Kelly blamed the Trump administration for making veterans' health care more difficult by indiscriminately dumping staffers.

Sen. Mark Kelly champions the PAIN Act to improve seniors' access to non-opioid pain treatments under Medicare.

Arizona Republican U.S. Rep. Andy Biggs, for example, said on social media, “Dictator Zelensky had the audacity to disrespect President @realDonaldTrump and VP @JDVance during what should have been a friendly meeting,

Everyone - from leaders in Russia and Europe to Donald Trump and Arizona's senior senator - is lying about the war in Ukraine.

Sen. Mark Kelly has long backed Ukraine in its war with Russia and spoken in harsh terms about Russian President Vladimir Putin.

Mark Kelly is co-sponsoring a union-friendly bill ... In 2022, for example, Fred Yamashita, then the executive director of the AFL-CIO in Arizona, praised Kelly as a “worker-friendly” candidate.