April 26 (Reuters) - Conservative commentator Ann Coulter has canceled her speech planned for this week at the University of California's Berkeley campus after a dispute with university officials, who feared violent protests, over whether a safe venue could be found.

"There will be no speech," she wrote in an email to Reuters on Wednesday, saying two conservative groups sponsoring her speech were no longer supporting her. "I looked over my shoulder and my allies had joined the other team," she wrote. (Reporting by Mark Hosenball in Washington and Jonathan Allen in New York)

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