Poll Suggests Donald Trump Would Be Weak Candidate in November Donald J. Trump would be the weakest Republican presidential candidate to face off against Hillary Clinton in a general election matchup, according to a new poll that shows Senator Ted Cruz and Gov. John Kasich as stronger nominees against the Democratic front-runner. According to a survey from Quinnipiac University, Mr. Trump continues to be the most popular candidate with Republican voters, but he trails Mrs. Clinton in a hypothetical matchup by a margin of six percentage points, 46 percent to 40 percent. The poll had a margin of error of...