Republican Donald Trump’s large campaign rallies, and the protests around them, are leaving some cities and towns with a big bill.

In March, 15 Trump presidential-campaign events cost local authorities more than $300,000 to secure and manage, local police departments and campaign venues reported in a survey by The Wall Street Journal. That is an average of $20,000 in costs per event. Some event sites are billing the campaign for reimbursement, and some have gotten money back.

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