In a Quinnipiac University poll released Wednesday, Trump's 23 percent standing among Republicans in Pennsylvania compares to 24 percent August 20. Carson is close with 17 percent, with 12 percent for Rubio, 8 percent for Fiorina, 6 percent for Cruz, 5 percent for New Jersey Gov. Christopher Christie and 4 percent each for Bush and Huckabee. No other candidate tops 3 percent and 12 percent are undecided.
Among Republicans, 31 percent say they would "definitely not support" Trump. Trump gets a negative 36 - 56 percent favorability and voters say 54 - 37 percent he is not honest and trustworthy.
Clinton drops among Pennsylvania Democrats, from 45 percent August 20 to 36 percent today. Biden is closing in with 25 percent, with Sanders at 19 percent and 10 percent undecided. Among these Democrats, 18 percent would not vote for Clinton.
In general election matchups:
-- Biden trails Carson 47 - 42 percent and gets 45 percent to 42 percent for Bush. He gets 44 percent to Fiorina's 43 percent. Biden gets 45 percent to Rubio's 43 percent and beats Trump 50 - 40 percent.
-- Clinton trails Bush 46 - 40 percent and loses to Carson 49 - 40 percent. She trails Fiorina 45 - 41 percent and gets 42 percent to 45 percent for Rubio. Clinton gets 44 percent to 42 percent for Trump.
-- Sanders gets 42 percent to 44 percent for Bush and loses to Carson 47 - 37 percent. He slips behind Fiorina 44 - 40 percent and trails Rubio 45 - 39 percent. Sanders beats Trump 46 - 41 percent.
Pennsylvania voters give Clinton a negative 41 - 54 percent favorability rating and say 61 - 34 percent she is not honest and trustworthy."Biden rumbles as Clinton stumbles. Undeclared but not underrated in his home state of Pennsylvania, Vice President Joe Biden makes a move on Secretary Hillary Clinton and U.S. Sen. Bernie Sanders," said Tim Malloy, assistant director of the Quinnipiac University Poll. "In tight races with Gov. Jeb Bush, Carly Fiorina and Sen. Marco Rubio, and crushing Trump, Biden makes a home state statement. And in a matchup with Hillary Clinton he's riding high marks on trust and honesty and closing fast."