Former Secretary of State Hillary Clinton holds a commanding lead over her presumed challengers in the 2016 presidential race, a new poll finds.

Survey results released Tuesday morning by Quinnipiac University show Clinton with 58 percent of the vote in a potential Democratic primary and a comfortable lead of seven to nine points over various possible Republican challengers.

Among potential GOP contenders, Sen. Rand Paul holds a slight lead in a very fractured primary field with 11 percent of the vote. Not far behind are New Jersey Gov. Chris Christie, former Arkansas Gov. Mike Huckabee and former Florida Gov. Jeb Bush, who each received 10 percent.

The poll found 48 percent of voters saying they have already heard enough to form a "favorable" opinion about Clinton, with 43 percent reporting an "unfavorable" opinion. Only eight percent of respondents say they still haven't heard enough.

Compared with her potential Republican opponents, that gives Clinton an edge in name recognition. The survey showed 31 percent of respondents, for example, saying they still haven't heard enough about Rep. Paul Ryan, R-Wis., even after he gained national attention two years ago as Mitt Romney's running mate.

But America's familiarity with Clinton could also be a thorn in her side. She'll have to work harder than others to sway voters who have already made up their minds and might have more difficult time defining a new narrative heading into 2016.

Quinnipiac surveyed 1,446 voters, including 620 Republicans and 610 Democrats, between June 24-30. The poll's margin of error was plus or minus 2.6 percent.