Republican presidential candidate Donald TrumpDonald John TrumpOn North Korea, give Trump some credit Exclusive: Bannon says Rosenstein could be fired 'very shortly' GOP dissidents on cusp of forcing immigration votes MORE is spending Saturday campaigning in Arizona ahead of the state's critical primary on Tuesday. 

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His first rally in Phoenix, Ariz., is scheduled to begin at 1 p.m. Eastern. 

Watch the event live in the video above.