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Story highlights

Marco Rubio fended off an attack from Jeb Bush and then hit the Republican establishment, Democrats and the media

Ted Cruz, Rubio, Trump and Chris Christie all went after CNBC's moderators

Washington CNN —  

The third Republican presidential debate is in the books after the top 10 leading GOP candidates debated for more than two hours.

2016 election candidates

With fewer than 100 days until the first ballots are cast, the CNBC-hosted event was a critical test for many of the campaigns reaching the make-or-break point of their campaigns. A few candidates rose to the moment with strong performances that could bolster their standings in the polls and their pad their campaigns’ coffers. But not everyone is leaving Colorado with a smile on their face.

Seething GOP candidates escalate their CNBC grievances

Here’s our take on the night’s winners and losers:

WINNERS

Marco RUBIO

The gloves are off.

The young senator from Florida handily eclipsed his one-time mentor Jeb Bush, proving that he is more than ready for the big leagues.

His strong night started off after Bush dug into him over his poor voting attendance record in the Senate. Rubio not only fended off the offensive, but returned in kind with a searing attack.

“Th