Protesters in Fountain Hills, Arizona, have shut down traffic heading to a planned Donald TrumpDonald John TrumpDems flip Wisconsin state Senate seat Sessions: 'We should be like Canada' in how we take in immigrants GOP rep: 'Sheet metal and garbage' everywhere in Haiti MORE rally Saturday.

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Several dozen protesters carrying signs and flags have lined themselves up on the main road leading to the rally.

Police are on scene and have issued warnings to the protesters, urging them to clear out.