To beat Trump, the Biden campaign aims to use the tactics that ousted controversial sheriff Joe Arpaio in the state's largest county in 2016.
"I never had a hero in my life until several months ago when I woke up after 75 years and I found my hero," Arpaio said, revealing it is Trump.
Dr. Kelli Ward, former Arizona state representative and current GOP U.S. Senate candidate, took another swipe at the late Senator John McCain, comparing cancer to political correctness.
Under pressure from her hardline anti-immigrant opponents, a GOP candidate for Senate from Arizona appears to have removed a video of her supporting DACA.
Former Maricopa County Sheriff Joe Arpaio has said Judge Susan Bolton "refused to hear or rule on the Motion for New Trial," in his second attempt to have his conviction cleared.
He has said Congress should examine all presidential birth certificates because he still thinks Obama's is a forgery.
Former GOP communications director Tara Setmayer said Joe Arpaio's Senate run could be "Roy Moore part two."
Joe Arpaio, the former Maricopa County sheriff pardoned by Donald Trump, came to California to lambaste Obama and praise the president.
"Arpaio broke the rules he was sworn to uphold, rules that are put in place to protect citizens from a government going out of control," Oliver said of the former Arizona sheriff.
The former Arizona sheriff later walked back his 2007 comments while giving testimony in a civil lawsuit.
Obama commuted the sentence of the military leaker but did not issue a full pardon.
Arpaio had faced decades of accusations of violating the rights of minorities as sheriff.
The president reportedly asked the attorney general months ago if it would be possible to close the case.
"Sheriff Joe" is an Obama birther who forced Arizona inmates to wear pink underwear and stay in stifling hot tents.
Arizona is the biggest prize for both parties Tuesday night.
Residents in three Western states are casting their picks as national security once again is a hot-button issue.