Senate Majority Leader Harry Reid privately told fellow Democratic senators this week what he really thought of Speaker John Boehner. “He’s a coward,” Reid angrily said, referring to Boehner’s private push for federal health care contributions for lawmakers and their staff. Boehner later backed legislation to end those subsidies in order to win points with House GOP conservatives. “He’s a coward!” Reid exclaimed. Reid’s outburst — confirmed by several sources attending a Senate Democratic policy luncheon on Tuesday — is the latest example of how the relationship between the nation’s top political leaders is now brimming with acrimony, distrust and...