Arizona's McSally releases drug pricing legislation

Arizona Republican Sen. Martha McSally has introduced long-promised legislation aimed at reducing drug prices, particularly for seniors on Medicare, as she ramps up a tough election campaign in which health care is likely to figure prominently.

Arizona Sen. Kyrsten Sinema endorses Joe Biden for president

Democratic Arizona Sen. Kyrsten Sinema says she's endorsing former Vice President Joe Biden in the 2020 election.

Trump responds to Super Tuesday results, Bloomberg's drop out

There's been more fallout Wednesday following the results of Super Tuesday, where 14 states voted in the presidential primary.

Maricopa County Officials: No 'second chance voting' in Arizona

Officials with Maricopa County say they can't issue a new ballot for those who have voted for a presidential candidate who recently dropped out of the race.

Biden claims 10 Super Tuesday victories, including Texas

A resurgent Joe Biden scored sweeping victories from Texas to Massachusetts on Super Tuesday, revitalizing a presidential bid that was teetering on the edge of disaster just days earlier. But his rival Bernie Sanders seized the biggest prize with a win in California that ensured he would drive the Democrats' nomination fight for the foreseeable future.

Bloomberg to reassess campaign after disappointing results

Former Mayor Mike Bloomberg has spent hundreds of millions of dollars on his campaign for the Democratic nomination for president.

Super Tuesday marks first major security test of 2020

Tuesday’s presidential primaries across 14 states mark the first major security test since the 2018 midterm elections.

Arizona Senate candidate Mark Kelly says he’s backing Biden

Arizona Senate candidate Mark Kelly said Monday he’ll vote for Joe Biden in the Democratic presidential primary, throwing his support behind the former vice president as Biden looks to solidify moderate Democrats against Bernie Sanders.

Super Tuesday: What to watch as 14 states vote in pivotal primaries

While Super Tuesday won't necessarily determine who wins the nomination, it has historically been difficult for a candidate who performs poorly on the day to recover.

Super Tuesday: 5 key questions ahead of critical primaries

Nearly one-third of all the delegates at July's Democratic National Convention are up for grabs on Super Tuesday.