Pinal County Sheriff Mark Lamb, who is running to be Arizona's next senator, says Arizonans needs a "proven conservative fighter" in Washington, D.C., to stop the flow of drugs and crime across ...

Pinal County Sheriff Mark Lamb has filed paperwork to run for U.S. Senate in Arizona, becoming the first Republican to step forward to challenge incumbent Sen. Kyrsten Sinema, an independent.

Pinal County Sheriff Mark Lamb has filed federal paperwork to run for the U.S. Senate in Arizona, becoming the first Republican to jump into a high-profile race for the seat now held by ...

Pinal County Sheriff Mark Lamb announced Tuesday he's running for the U.S. Senate. His decision makes him the first prominent Republican to enter the race for the seat held by Sen. Kyrsten Sinema ...

Pinal County Sheriff Mark Lamb, a Republican, is running a low-profile campaign for the U.S. Senate and his team said that applies to official endorsements as well. Here's what the campaign said ...

Pinal County Sheriff Mark Lamb of Arizona announced Tuesday that he is running for Senate, becoming the first major Republican candidate to enter the race for the seat held by Sen. Kyrsten Sinema ...

PHOENIX (AP) — Pinal County Sheriff Mark Lamb said Tuesday he’s running for the U.S. Senate in Arizona, becoming the first Republican to jump into a high-profile race for the seat now held by ...