Republican New Jersey Gov. Chris Christie insists that the many presidential polls showing President Barack Obama with an edge over GOP hopeful Mitt Romney aren't rigged, no matter what so-called "poll truthers" like Karl Rove and Dick Morris say.

"I don't buy that," Christie told ABC host George Stephanopoulos on Sunday. "You look at every poll, you look at its methodology, you can say whether it's a good or bad poll."

"But do I think there's a concerted effort to skew the polls against Gov. Romney? No, I don't buy that," he said.

During a segment last week on Fox News, Morris had claimed that Romney was “in a very strong position” even though polls showed him down in all nine battleground states.

“I believe if the election were held today, I believe Romney would win by four or five points,” Morris explained. “I believe he would carry Florida, Ohio, Virginia. I believe he would carry Nevada. I believe he would carry Pennsylvania — Pennsylvania. And I believe he would be competitive in Michigan.”

“People need to understand that the polling this year is the worst it’s ever been,” he insisted. “Because this is the first election where if I tell you who’s going to vote, I can tell you how they’re going to vote. … And the models these folks are using are crazy. They assume a Democratic edge of six or seven points.”

On Thursday, MSNBC host Chris Matthews asked Ron Reagan, the liberal son of former President Ronald Reagan, why Fox News would invite Morris on to slam even their own poll — which showed Obama leading Romney nationally, 48-43.

“You sometimes imagine that back in the Republican green room, there’s this giant crack pipe that they’re all hitting on constantly, hitting it hard,” Reagan joked.

Watch this video from ABC's This Week, broadcast Sept. 30, 2012.

(h/t: MSNBC)