Trump on Fox Debate: 'Let's See How Much Money They Can Make Without Me'

Republican presidential front-runner Donald Trump is shaking things up again, this time refusing to participate in the final debate before the Iowa caucuses.

"Let's see how much money Fox is going to make on the debate without me, okay?" the business mogul said.
 
This is only the latest move in what has been an off and on feud between Fox News and the Republican front-runner.

Trump claims Fox News anchor Megyn Kelly treated him unfairly in the previous GOP debate. Kelly is one of the three moderators for Thursday's event.

Meanwhile, Fox fired back, saying in a statement that network officials had "learned from a secret back channel that the ayatollah and Putin both intend to treat Donald Trump unfairly when they meet with him if he becomes president."

Instead of attending the debate, Trump plans to host a competing event on Thursday that he says will raise money for veterans and wounded warriors.

In light of the news that Trump will not participate, his main rival, Sen. Ted Cruz, R-Texas, offered up a challenge.

"I would like to invite Donald right now to engage in a one-on-one debate with me any time between now and the Iowa Caucuses," Cruz said.

A recent poll shows Trump has regained the lead in Iowa.

The Real Clear Politics average has Trump with 33 percent and Cruz at 27.5 percent, with Sen. Marco Rubio, R-Fla., coming in third at 12 percent.

And there's drama on the Democratic side as well, where the race has tightened considerably.

The RCP average has Hillary Clinton with 46 percent of the vote and Bernie Sanders at 45.4 percent, a dead heat.

But it's not over 'til it's over, and many voters say they can still change their minds.