The White House has responded to a report that there was an effort last year by top Democrats close to President Joe Biden to oust White House press secretary Karine Jean-Pierre. A spokesman for Biden denied claims by two people who told the New York Post they were briefed on the plot to persuade the press secretary to leave her post. White House deputy press secretary Andrew Bates defended Jean-Pierre and told the outlet she was being “singled out.” A source told the Post that last fall, White House adviser Anita Dunn called in several “prominent Democrats” to explain to Jean-Pierre that she …