Democratic Senate candidate Mark Kelly apologized Thursday for a staffer's tweet calling Chicago officers "worthless f—ing pigs," a statement his Republican rival, Sen.
Martha McSally, seized on as proof of anti-police bias in the astronaut's campaign. The Twitter post from T.J. L'Heureux was posted in August, a week before he was hired as deputy press secretary, in response to a video showing Chicago cops seizing open umbrellas from protestors during a violent clash.
A city official said later that demonstrators had used the umbrellas to shield their actions from view as they pelted police with frozen water bottles, rocks and pipes.
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