Presidential candidates fight for Iowa

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IOWA - Could this be a sign that Donald Trump's red-hot campaign is beginning to fizzle? An alleged Trump supporter interrupted a rally in New Hampshire on Monday, calling the bombastic billionaire 'boring!' That's gotta be a first, right?

With just three weeks to go until the important Iowa caucus, Donald Trump might have something to worry about: Ted Cruz. The latest poll results from NBC News/Wall Street Journal/Marist show the Texas senator and the Donald locked in a virtual tie. Cruz actually leads Trump among 'likely' caucus-goers by four points in Iowa, 28-24%, but the 4.6% margin of error puts them neck-and-neck.

The same poll shows Bernie Sanders has nearly caught up with Hillary Clinton in Iowa. Clinton holds a 48% to 45% lead over Sanders among 'likely' Iowa caucus-goers, a smaller lead than other polls have shown for months in The Hawkeye State. Poll numbers also have Sanders ahead of Clinton 50-46% in New Hampshire.

Meanwhile, Fox Business Network has rolled out the lineup for Thursday's GOP debate. Trump's still center stage, with Kasich and Bush as bookends, but a couple of candidates got left out this time around! Sen. Rand Paul and Carly Fiorina have been relegated to the kids table, or the 'undercard debate,' as it's properly called, along with former Gov. Mike Huckabee and former Sen. Rick Santorum. But Rand Paul says you can take that invitation and shove it where the sun don't shine, because he won't debate unless it's with the big boys.