Ben Carson doubled his support since the last NBC/Wall Street Journal presidential poll in July to nearly tie Donald Trump among Republican voters, according to the latest survey released Sunday.
Hillary Clinton's 34-point lead over Bernie Sanders measured in July shrunk to just 15 points -- just 7 points if Joe Biden were to jump into the race, according to the latest NBC/WSJ poll of Democratic voters.
Trump remains the Republican leader for the presidential nomination with 21%, reflecting a 2-point rise since July, while Carson gained 10-points to reach 20% support in late September. Carly Fiorina and Marco Rubio are tied at 11%.
The shift among Republicans includes a 50% decline for Jeb Bush, who was 3rd at 14% in July and is now just 7% and 5th. John Kasich follows at 6% and Ted Cruz with 5%.
NBC/WSJ poll on GOP race: Trump 21 (+2 since July) Carson 20 (+10) Rubio 11 (+6) Fiorina 11 (+11) Bush 7 (-7) Kasich 6 (+3) Cruz 5% (-4)
-- Mark Murray (@mmurraypolitics) September 27, 2015
The rear pack of GOP candidates includes Rand Paul and Chris Christie at 3%, Mike Huckabee with 2%, while Rick Santorum and Bobby Jindal have just 1% support nationally. Republican candidates not showing up with any measurable support are Lindsey Graham, George Pataki and Jim Gilmore.
Carson's prospects are boosted when pollster add who Republicans list as a second choice for president. The retired neurosurgeon has 35% versus Trump's 31%.
Clinton is the first choice of 42% of Democrats, while Sanders has 35% and Biden gets 17%. But with Biden out of the race, Clinton's support jumps to 53% and Sanders gets 38%.
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