Much has been made by Republicans and supporters of Sen. Bernie Sanders that a Hillary Clinton presidency would look a lot like a third Obama term.

But some are whispering concerns that it amounts to a third term of Bill Clinton's presidency, challenging the spirit of the 22nd Amendment barring third terms.

"It's not healthy for our system," said pollster John Zogby, a registered Democrat.

He said few are talking about the issue, but "they should be because he still has the perks of the presidency and there is the dynastic aspect to it, at least in form, if probably not legally."

For the Clintons, the issue is one they've toyed with for years. During his 1992 presidential bid, they talked about a "two for the price of one" presidency. It prompted the New York Times and Huffington Post to raise concerns about the 22nd Amendment.

"Hillary's election would not violate the letter of the 22nd Amendment; she has never been elected before. Nevertheless, the amendment is a political problem because it is a constitutional embodiment of a vaguer political thought that eight years is enough," the HuffPost said at the time.

Since leaving office, Bill Clinton has championed killing the 22nd Amendment. And Hillary Clinton has recently suggested putting her husband in charge of the economy to revive his main success and role during his own two terms.

A second Clinton presidency would be different than the recent Bush presidencies. George W. Bush made a point of keeping his father at arm's length, even fashioning his two terms after Ronald Reagan. With the Clintons, there is the potential for two presidents sleeping in the same bed.

"I think that this raises a lot of uncomfortable issues for the rest of us and for them," Zogby said.

For example, to duck criticism, he said that Bill Clinton would have to avoid taking an official office, talking to Congress and pushing his own agenda.

"He can't have any role with Congress. It's one thing to be an ad hoc trouble shooter, but now with Congress, that's for the president," he said.

And he can't talk about big policy either, said the pollster, raising another issue. "How does Bill Clinton dodge questions when he's right there in the White House? He can't and he won't."

A scholar on the millennial generation, Zogby said the Clinton-Clinton presidential issue is one that many families are living through. "This is almost like a millennial situation where the kid comes home and lives in the basement. He still is a kid."

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at pbedard@washingtonexaminer.com