Clinton Would Trounce Trump But Lose to Rubio, Carson by CARRIE DANN Hillary Clinton would defeat Ted Cruz and trounce Donald Trump in a hypothetical head-to-head general election matchup, but she would lose to Marco Rubio or Ben Carson, a new NBC News/Wall Street Journal poll finds. Clinton, who leads the Democratic primary field by nearly 20 points, would have a strong advantage over Trump with independent voters but would be bested by the three other Republicans with the important swing group. The poll, conducted Dec. 6-9, shows Clinton getting the support of 56 percent of Democrats, compared to 37...