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New Jersey Gov. Chris Christie rates second with 13 percent, followed by Sen. Marco RubioMarco Antonio RubioSenate GOP to drop documentary series days before election hitting China, Democrats over coronavirus Bipartisan group of senators call on Trump to sanction Russia over Navalny poisoning Trump's new interest in water resources — why now? MORE (Fla.) with 12 percent and Jeb Bush with 11 percent. Sen. Ted CruzRafael (Ted) Edward CruzSenate GOP to drop documentary series days before election hitting China, Democrats over coronavirus Democrats play defense, GOP goes on attack after Biden oil comments Quinnipiac poll finds Biden, Trump tied in Texas MORE (Texas) and Rep. Paul RyanPaul Davis RyanMcCarthy faces pushback from anxious Republicans over interview comments Pelosi and Trump go a full year without speaking Jordan vows to back McCarthy as leader even if House loses more GOP seats MORE (Wis.) garner 10 percent. Nineteen percent of Republicans are undecided. 

Rubio’s numbers have dropped 7 percent since an April survey. 

The numbers contrast with a Democratic affiliated Public Policy Polling survey released last week that showed Cruz surging after his 21-hour floor speech against ObamaCare. Cruz closely trails Paul among Tea Party voters, taking 20 percent. 

Fifty-eight percent of people say they have not heard enough about Cruz to form an opinion. 

On the Democratic side, Hillary ClintonHillary Diane Rodham ClintonObama slams Trump in Miami: 'Florida Man wouldn't even do this stuff' Ballot initiatives in Colorado, Louisiana could restrict abortion access Trump mocks Joe Biden's drive-in rallies at North Carolina event MORE continues to dominate a potential 2016 Democratic primary, with 61 percent of Democrats saying they would vote for her. Vice President Biden takes 11 percent. Those numbers are largely unchanged since Quinnipiac’s last poll in May. 

The poll surveyed 1,497 registered voters and has a margin of error of 2.5 percent.