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 independent Sen. Kyrsten Sinema.
Lamb, who filed with the Federal Election Commission on Monday, has built a profile in Arizona and beyond as a staunch supporter of former President Donald Trump and an advocate for cracking down on illegal immigration and drug smuggling. While Pinal County is not on the U.S.-Mexico border, it has a number of active drug and human smuggling routes through remote desert terrain.
