ABC News/Washington Post poll:
The Roots of Trumpismo: Populism and Pushback (full pdf here)
Trump Hits a Wall Within the GOP; His Critics Back a Convention Fight (full pdf here)
Challenges for Trump vs. Clinton: Favorability, Attributes and More (full pdf here)
Public Backs Scalia Replacement Hearings by Nearly 2-1 (full pdf here)
ABC News exit/entrance poll analyses: