Poll: Clinton tops GOP, Dem 2016 rivals
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Hillary ClintonHillary Diane Rodham ClintonGOP struggles with retirement wave Overnight Energy: Trump to revoke California's tailpipe waiver | Democrats propose bill to revoke Trump endangered species rollback | Trump officials finalize rule allowing fewer inspectors at pork plants Mark Mellman: The most important moment in history? MORE holds a strong lead over a slew of potential 2016 Democratic and Republican presidential rivals, according to a new poll released Wednesday.

The CNN/ORC poll reveals that most voters would pick the former secretary of State over five other likely Democratic candidates in head-to-head match-ups. Voters also prefer Clinton over seven potential Republican contenders in hypothetical races.

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Clinton leads the pack of likely 2016 Democratic candidates with 62 percent support. Her nearest competitors are Vice President Biden and Sen. Elizabeth WarrenElizabeth Ann WarrenKavanaugh impeachment push hits Capitol buzz saw Mark Mellman: The most important moment in history? Katie Pavlich: The Democrats' desperate do-overs MORE (Mass.), each with 10 percent support.

Independent Sen. Bernie SandersBernie SandersJimmy Carter: 'I hope there's an age limit' on presidency 2020 candidates keep fitness on track while on the trail Mark Mellman: The most important moment in history? MORE (Vt.), who is also weighing a bid, snagged 3 percent support. Former Gov. Martin O’Malley (Md.) and former Sen. Jim Webb (Va.) rounded out the field with 1 percent apiece.

Clinton's lead among Democrats grows notably if Warren is removed from the field. In that scenario, 67 percent of voters back Clinton, with Biden being her nearest rival with 16 percent.

Voters also favor Clinton in head-to-head contests with the GOP’s likely 2016 candidates.

She beats former Gov. Jeb Bush (Fla.), her closest Republican competitor, 55 percent to 40 percent. 

Clinton also tops Gov. Chris Christie (R-N.J.) 55 percent to 40 percent and Sen. Marco RubioMarco Antonio RubioRepublicans wary of US action on Iran California poll: Biden, Sanders lead Democratic field; Harris takes fifth The 13 Republicans needed to pass gun-control legislation MORE (Fla.) 55 percent to 42 percent.

Voters also prefer Clinton over former Gov. Mike Huckabee (Ark), 55percent 41 percent; over Sen. Rand PaulRandal (Rand) Howard PaulRepublicans wary of US action on Iran EXCLUSIVE: Swing-state voters oppose 'surprise' medical bill legislation, Trump pollster warns Rand Paul: Almost every mass shooter 'is sending off signals' MORE (Ky.), 54 percent to 43 percent; Gov. Scott Walker (Wis.) by 55 percent to 40 percent; and over retired neurosurgeon Ben Carson 56 percent to 40 percent.

The poll shows that Clinton is still in a commanding position despite the controversy over her use of a private email account and server while serving as secretary of State. Fifty-three percent of voters viewed Clinton favorably, while 44 percent viewed her unfavorably.

Clinton addressed the controversy, revealing that she had deleted messages but insisting all relevant emails had been shared with the State Department.

But Republicans are vowing to investigate the matter. Speaker John BoehnerJohn Andrew BoehnerBoehner reveals portrait done by George W. Bush Meadows to be replaced by Biggs as Freedom Caucus leader Scaramucci compares Trump to Jonestown cult leader: 'It's like a hostage crisis inside the White House' MORE (R-Ohio) on Tuesday called on Clinton to give a “neutral third party” access to the email server. Rep. Trey GowdyHarold (Trey) Watson GowdyRising star Ratcliffe faces battle to become Trump's intel chief Cummings announces expansion of Oversight panel's White House personal email probe, citing stonewalling Pelosi says it's up to GOP to address sexual assault allegation against Trump MORE (R-S.C.), chairman of the House panel investigating the 2012 attacks in Benghazi, Libya, said Sunday the House could vote to subpoena Clinton’s emails.

CNN/ORC interviewed 1,009 via telephone for the poll form March 13-15. It has 3-percentage-point margin of error.