Students at North High School and Maryvale High School have staged walkouts Tuesday afternoon.
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A student with the group tells ABC15 the students planned to canvas voters and protest against Sheriff Joe Arpaio and Donald Trump.
Air15 video from the two schools showed hundreds of students marching with signs, and inflatable anti-Arpaio balloons.
Students not old enough to vote donning T-shirts that say "Arrest Arpaio" were holding signs depicting the longtime sheriff as a pig in a jail uniform.
The students were cheering as cars honked and held signs that said "Vote against hate."
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So far the schools have not made any comment about the walkouts.
Stay with ABC15 and ABC15.com for the latest on this developing story.
Information from the Associated Press was used in this story.