Democratic Arizona Sen. Ruben Gallego is wading into one of Washington's most contentious and intractable political problems ...

The freshman senator from Arizona details his plans on border security with a longstanding citizenship goal for "Dreamers." ...

The Arizona senator, who eked out a two-point Senate victory in Arizona last year even as former Vice President Kamala Harris fell to Trump, argues that he has credibility as a border-state lawmaker ...