Arizona’s legislative Republicans, after gaining ground in both chambers in the Nov. 5 election, retained Warren Petersen as ...

Ruben Gallego is on course to become Arizona's first Latino U.S. senator. Congress returns to work on Tuesday against the ...

The Arkansas senator is about to get a dizzying amount of power in the chamber now that Marco Rubio has been tapped for Trump ...

Arkansas Sen. Tom Cotton is expected to become the next chairman of the Senate Select Committee on Intelligence after ...

Though Sens. Jim Risch (R-Idaho) and Susan Collins (R-Maine) outrank Cotton in seniority on the Intelligence Committee, they ...

During an interview Monday with Tom Homan, Trump’s former director of Immigration Customs and Enforcement, Fox News’s Sean ...

Senate Republicans are on track for a majority of 53 seats, with one race, in Arizona, still undecided ... currently held by ...

President-elect Donald Trump is making demands of the next Senate Republican leader ahead of a closed-door election this week ...

NBC News hasn't called the Senate race in Pennsylvania, where Democrats are holding out hope even as Republican Dave ...

Republican lawmakers are vowing to "escort" Dave McCormick into the Capitol to take part in Senate orientation if the upper chamber's majority leader, Chuck Schumer, continues to withhold his ...

Sen. Tom Cotton (R-Ark.) has secured a solid majority of Republican senators' votes to elect him GOP Conference Chair — the ...