Kellyanne Conway admitted Sunday that video put out by the White House of Jim Acosta “karate chopping” a White House aide had ben “sped up,” but added that she didn’t believe it made the footage misleading or doctored.

“I have to disagree with the overwrought description of this video being doctored as if we put someone else’s arm in there,” she said. “That’s not altered. That’s sped up. They do it all the time in sports to see if there’s actually a first down or a touchdown.”

Conway made the concession under questioning by “Fox News Sunday” host Chris Wallace.

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The Conway answer is the latest development in the mystery of the video, first promoted last week by Press Secretary Sarah Huckabee Sanders. The video shows the encounter between Acosta and...