Californnia’s new law against “deepfake” political ads, which impersonate a candidate and misrepresent the candidate’s views, violates the constitutional right of free expression, a federal judge said Wednesday in a ruling blocking enforcement of the law. The law, signed by Gov. Gavin Newsom on Sept. 17, was a response to videos posted by a conservative producer, and publicized by billionaire Elon Musk, that showed Vice President Kamala Harris appearing to say, in an artificially generated...