Trump stays on top with 26 percent among GOP primary voters, followed by Carson at 18 percent.  Fiorina and Florida Sen. Marco Rubio are next, tied at 9 percent.  All four have gained ground. After the August Fox News debate, Trump had 25 percent, while Carson had 12 percent, Fiorina 5 percent and Rubio 4 percent. 

Trump holds his leader status even though he was once again rated in the poll as having done the worst job in the debate. Fiorina, Rubio and Carson receive positive marks for their performances.

The appeal of outsiders comes from significant dissatisfaction with the party establishment:  62 percent of Republican primary voters feel “betrayed” by politicians in their party, and another 66 percent say the recent Republican majorities in Washington have failed to do all they could to block or reverse President Obama’s agenda.  For comparison, 40 percent of Democratic primary voters feel betrayed by their party.