Hillary ClintonHillary Rodham ClintonHouse cancels ObamaCare repeal vote as GOP defections mount Keystone approval kicks off new fight over pipeline Mnuchin: Trump has 'perfect genes' MORE leads the other potential 2016 Democratic presidential candidates by a six-to-one margin, while the Republican race is wide open, a new poll suggests.

Clinton received 73 percent of support for a presidential bid among Democrats and independents leaning that way, according to a Washington Post-ABC News poll released Thursday. 

Vice President Biden came in second place with 12 percent support and Sen. Elizabeth WarrenElizabeth WarrenThe Hill’s Whip List: Where Dems stand on Trump’s Supreme Court nominee Senators war over Wall Street during hearing for Trump's SEC pick Senators demand Pentagon action after nude photo scandal MORE (D-Mass) came in third with 8 percent.

The pollsters say Clinton’s lead is the largest recorded in 30 years of Washington Post-ABC News polling. 

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In a hypothetical match-up in the 2016 general election, Clinton leads New Jersey Gov. Chris Christie (R), 53 percent to 41 percent. In 2012, the Post notes, President Obama defeated Mitt Romney 51 percent to 47 percent in the popular vote. In 2008, Obama beat Sen. John McCainJohn McCainMcCain: I haven't talked to Trump since he became president Overnight Defense: General warns State Department cuts would hurt military | Bergdahl lawyers appeal Trump motion | Senators demand action after nude photo scandal Senate lawmakers eye hearing next week for Air Force secretary: report MORE (Ariz.) 53 percent to 46 percent.

No one in the GOP field received as much support as Clinton in the poll. Six Republican candidates, in fact, received between 10 percent and 20 percent. 

Rep. Paul RyanPaul RyanGOP chairman: 'This bill is dead' House cancels ObamaCare repeal vote as GOP defections mount White House: Vote at 3:30; Trump left 'everything on field' MORE (R-Wis.) leads the pack with 20 percent support, with former Florida Gov. Jeb Bush (R) in second with 18 percent. Christie came in third place with only 13 percent among Republicans and independents leaning in that direction.

Forty-three percent of Republicans view Christie favorably, compared to 33 percent who view him unfavorably, the poll indicates.

Three Republican senators who may also run received the least amount of support in the poll. Ted CruzTed CruzHow 'Big Pharma' stifles pharmaceutical innovation AIPAC must reach out to President Trump Under pressure, Dems hold back Gorsuch support MORE (Texas) received 12 percent, Rand PaulRand PaulPaul: Pence should oversee Senate ObamaCare repeal votes Healthcare fight pits Trump against Club for Growth GOP rep: Trump could be 'one-term president' if healthcare bill passes MORE (Ky.) had 11 percent and Marco RubioMarco RubioSenators introduce new Iran sanctions Senate intel panel has not seen Nunes surveillance documents: lawmakers With no emerging leaders, no clear message, Democrats flounder MORE (Fla.) received 10 percent.

Four percent of voters leaning Republican said they wouldn’t vote for any of the above candidates. The poll indicated 9 percent of them had no opinion of the GOP field.