Former Secretary of State Hillary ClintonHillary Rodham ClintonAmbassador's sister: I don't blame Clinton for Benghazi Clinton to Trump supporters: 'Don’t look for easy answers' Seven key findings in the Benghazi report MORE
is largely seen as the prohibitive favorite for the party's nomination if she runs. Other lawmakers, including Vice President Biden, Maryland Gov. Martin O'Malley, Sen. Kirsten GillibrandKirsten GillibrandDems separated by 29 votes in NY House primary Former Gillibrand aide wins NY House primary Dems celebrate anniversary of gay marriage ruling MORE
(D-N.Y.), and New York Gov. Andrew Cuomo (D), are also perceived as possible 2016 candidates.
Dean told the network that Clinton would not have "a pass" if she decided to run, despite early polls showing her with substantial leads over other Democrats.
"There will be other people who will run," Dean said.
But Dean, whose 2004 presidential campaign derailed after a disappointing third-place finish in the Iowa caucuses his often-mocked yell, sometimes called the "Dean Scream", said he was leaning against a run at the moment.
"If you had to put a gun to my head and make me decide right now, I wouldn't," he said. "But who knows?"