The Republican presidential candidates will face off Thursday night at the Fox News/Google debate in Des Moines, their final showdown before the Iowa caucuses.

The evening debate with lower-polling candidates begins at 7 p.m. ET, followed by the prime-time 9 p.m. ET debate.

Click to follow the debate liveblog.

The seven candidates on the prime-time stage at 9 p.m. ET will be:

Texas Sen. Ted Cruz; Florida Sen. Marco Rubio; retired neurosurgeon Ben Carson; former Florida Gov. Jeb Bush; New Jersey Gov. Chris Christie; Ohio Gov. John Kasich; and Kentucky Sen. Rand Paul.

The four candidates who qualified for the evening debate are:  

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Former HP CEO Carly Fiorina; former Arkansas Gov. Mike Huckabee; former Pennsylvania Sen. Rick Santorum; and former Virginia Gov. Jim Gilmore.

Click for full debate coverage