Eliot Spitzer’s TV sidekick is so fed up with playing second fiddle to the hooker-loving ex-gov that she’s threatening to walk, sources told The Post yesterday.

Washington Post columnist Kathleen Parker actually stormed off the set of the “Parker Spitzer” show during a pre-taping a few weeks ago — furious that her co-host is continually allowed to take charge of their nightly CNN chat-fest, the insiders said.

Although still fuming, Parker did return to wrap up the segment, they said.

But she’s angry that the show’s producers are allegedly doing nothing to play up her strengths on the ailing show, the sources said.

Some staffers said Spitzer — the hard-charging, former state attorney general who resigned as governor in 2008 after admitting to patronizing prostitutes — thrust himself up front and center right out of the gate, leaving Parker without a chance.

But other insiders said the Pulitzer Prize-winning Parker has only herself to blame.

While Parker — a conservative, nationally syndicated newspaper journalist — is widely respected, she’s no TV personality, critics said.

“Her weaknesses are felt internally,” a source said.

Meanwhile, Spitzer is exceeding everyone’s expectations, a source said.

“He’s smart, tenacious — he turned out better than they thought,” the source said.

Incensed over her lesser position on the one-hour show, Parker has now been privately grumbling that the show’s executive producer, Liza McGuirk, isn’t making the changes needed to boost Parker’s image, the sources said.

Someone could soon be shown the door over the behind-the-scenes battling — and over the fact that show has done so poorly in the all-important Nielsen ratings, the sources said.

But a CNN representative last night said the network stands squarely behind both McGuirk and Parker.

“CNN is standing by the show,” network spokeswoman Barbara Levin told The Post.

“Liza’s a terrific producer, and any suggestion that she’s on her way out is patently false.

“We love Kathleen,” too, Levin added.

Spizter is definitely the stronger of the two personalities and looks comfortable in front of the camera due to his years as the attorney general in New York and his short stint as Governor where Parker has been little more than milquetoast since the shows debut in October.

CNN may say publicly that they love Parker and that they are committed to the show but the abysmal ratings are surely testing the patience of new CNN president Ken Jautz who inherited the program from his predecessor Jonathan Klein.

If Parker does decide to leave it will make it easier for Jautz to revamp the prime time lineup and find a program that will actually draw viewer interest.

CNN just needs to admit the show is a flop and move on and remove themselves from the drama that Parker has now added to the situation which is only giving the show more bad p.r. at a time they can least afford it.