Former Arizona Representative Gabby Giffords had a hugely successful career in politics, but one terrifying moment almost took everything away from her.

U.S. Sen. Mark Kelly, one of the Democratic lawmakers in a video President Donald Trump slammed as "seditious," spoke out about recent threats.

As the manhunt goes on for the shooter who killed two people on the campus of Brown University, Democratic Sen. Mark Kelly ...

Mark Kelley is a Democratic United States Senator from Arizona. The retired astronaut and former U.S. Navy pilot took office ...

Mark Kelly said he and Gabby Giffords face rising violent threats after President Donald Trump accused him and other Democrats of 'seditious behavior' ...

Sen. Mark Kelly (D-Ariz.) on Tuesday said Donald Trump should know better than to encourage violence against lawmakers, ...

Donald Trump's threats against Arizona Sen. Mark Kelly have only served to elevate the decorated combat veteran as a hero in ...

Senator Mark Kelly said he’s faced an onslaught of death threats and hired a private security detail after President Donald ...

Sen. Mark Kelly criticized the Trump White House's way of notifying him of an investigation. Politically-motivated violent threats against Kelly and his wife, former U.S. Rep. Gabby Giffords, have ...

President Trump calling out the Dem senator from Arizona may raise the question: Who is Mark Kelly? Navy captain, astronaut, Gabby Giffords' spouse.