Top figures in the Democratic Party pummeled Donald Trump Thursday as they publicly coalesced around Hillary Clinton for the first time in her push for the White House. The three-pronged attack from President Barack Obama, Vice President Joe Biden, and Sen. Elizabeth Warren came on the same day the former and latter formally endorsed Clinton. The fiercest attack came from Warren, who excoriated Trump as "a loud, nasty, thin-skinned fraud who has never risked anything for anyone and who serves no one but himself" and warned of a "full-scale assault on the integrity of the federal judiciary and its judges."...