MPR's Laura McCallum was there and she says she didn't see anything, but the Mark Kennedy campaign's manager, Pat Shortridge, fired off a letter to Kloubuchar campaign manager Ben Goldfarb.
According to a news release from Kennedy staffer Heidi Frederickson:
Following a public speech given by Amy Klobuchar today at the Humphrey Institute on ethics, a staff member from Klobuchar’s U.S. Senate campaign forcibly detained interns from Mark Kennedy’s campaign who were there to tape the event demanding that they turn over the recording.
In a letter to Goldfarb, campaign manager Pat Shortridge attributed the reports to "multiple independent sources."
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