Senator Mark Kelly leads 12 colleagues in urging bipartisan efforts on U.S. border security and immigration reform, addressing a letter to Republican Senate Majority Leader Thune.

Pete Hegseth’s controversial nomination as defense secretary moved a step closer to confirmation with the Senate Armed Services Committee recommending him to the job on party lines. U.S. Sen. Mark Kelly,

The measure's bipartisan approval reflects broad support for cracking down on crime perpetrated by illegal immigrants.

Democratic Sen. Mark Kelly of Arizona is urging Republicans to work in a bipartisan fashion to find border security and immigration solutions.

Kelly and Gallego joined eight other Senate Democrats to help the Republican-led immigrant crime bill thwart a filibuster.

Senator Mark Kelly opposes Pete Hegseth's nomination for Secretary of Defense, citing concerns about his readiness.

Ariz., was part of a united Democratic contingent who view the Defense secretary nominee as a poor choice to lead the nation's military.

Sen. Mark Kelly reiterated on Sunday his continuing concern about the judgment of Tulsi Gabbard, President-elect Donald Trump’s pick for director of national intelligence, saying she had a “predilection for misinformation.”

Sen. Mark Kelly (D-Ariz.) said Sunday he is aware that the possible TikTok ban “is controversial,” yet the app “has a national security risk to it.” “I imagine [there’s going to] be a ...

The Senate has confirmed Marco Rubio as secretary of state, giving President Donald Trump the first member of his Cabinet. The vote was unanimous.

The Senate voted 61-35 to advance the bill ... Catherine Cortez Masto of New Mexico, Ruben Gallego and Mark Kelly of Arizona, Maggie Hassan and Jeanne Shaheen of New Hampshire, Jon Ossoff of ...