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Good morning.

Here’s what you need to know:

• Shooting reported at Ohio State University.

At least eight people were taken to the hospital this morning after reports of an “active shooter” on campus.

One person is in critical condition, fire department officials in Columbus said. Check back here for updates to this developing story.

• Trump criticizes recount effort.

President-elect Donald J. Trump said on Twitter on Sunday that millions of Americans had voted illegally, although he did not provide evidence. His comments are likely to reverberate this week as Hillary Clinton’s campaign said it would participate in a review of Wisconsin’s election results.