[StAnDeliver]

"PPP surveyed 403 likely Republican primary voters on April 4th. The margin of error for the survey is +/-4.9%."

QuinPoll sux in general but [a] their PA internals were stronger (and vastly divergent from PPP); and [b] they're having a good year.

[Strategerist]

The Qinnipiac poll started a week before the PPP one; I think a few % of the difference are just change over time and the effect of the Tuesday primaries.