The seat is vacant after incumbent Kyrsten Sinema left the Democratic Party to become an independent in December 2023.

The Senate's majority hangs in the balance of the 2024 election cycle, with more than a dozen seats potentially at play.

Arizona Democratic Senate candidate Ruben Gallego is widening his lead over Republican Kari Lake according to Morning Consult polls.

Some Democratic voters and lawmakers are concerned that even if they have a strong election, the GOP has a path to capture Senate control — and hinder a Harris agenda.

Based on recent statements from Arizona's Senate candidates, only one of them would have voted for federal IVF protection.

The Arizona Media Association is hosting a discussion with Arizona State Senate District 3 candidate John Kavanagh and ...

The study by Emerson College and The Hill, conducted in mid September among over 800 likely voters, has the Democrat ahead by ...

A debate is being held on Thursday night on a controversial illegal immigration and border security measure that will be on ...

Legislation for reservation border authorities critical in the nation’s grappling of the ongoing migrant crisis cleared the ...

Arizona lawmakers will tonight debate over a Republican-devised migration control measure voters will see on the ballot this ...

Arizona’s 1864 ban on nearly all abortions is officially being repealed on Saturday after months of heated debate in the ...

"Trump is a desperate, scared man," writes U.S. Senator Mark Kelly (D-AZ), the retired astronaut and Navy veteran who flew ...