CNBC announced Wednesday that candidates must have an average of at least 3% among recognized national polls in order to participate in their primetime debate on Oct. 28. Candidates who can’t clear 3% will be relegated to the undercard debate.

That is a departure from the first two Republican contests, which took the top 10 or 11 candidates for the main stage based on an average of national polls, including some candidates who had less than 3% support.

It’s not clear how many candidates would clear the 3% mark, but it is expected to put Paul, Christie and Mike Huckabee at risk of being relegated to the undercard. All three of those candidates are currently hovering around the 3% mark in an average of recent national polls.

Read the article “CNBC GOP Debate: Higher Qualifying Threshold May Relegate Huckabee, Christie, Paul to Undercard” on money.cnn.com.