Officials said someone threw rocks and a concrete planter through the window of the office in downtown Morehead City.
This comes after the assassination attempt against former President Donald Trump during a campaign rally in Pennsylvania Saturday. It left one spectator and the suspected gunman dead.
One of the bullets struck Trump's right ear, and the Secret Service agent escorted him off the stage.
It is unclear if the vandalism is related to the assassination attempt.
Police are investigating.
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Local GOP leaders, scholars weigh in on impacts of political attack