Last night's Republican Presidential Debate in Arizona marked the 20th, and as some speculate, the last debate in the 2012 GOP primary race. Here's how the debate was received in the social media world:

Leading up to the debate, there were high expectations for the candidates' performances:
bit.ly/xkR9AZFebruary 23, 2012
Why Tonight’s Republican Presidential Debate Matters
CNNon.cc.com/zVLcHaFebruary 22, 2012
trib.al/tWHRmgFebruary 22, 2012
As we predicted yesterday, the debate centered around the differences between front-runner Mitt Romney and emerging leader Rick Santorum, as they were strategically sandwiched in the center between neglected Ron Paul and Newt Gingrich.
#tcotFebruary 23, 2012

And there was no shortage of coverage of the debate. Here are the highlights from last night:
John King asks Ron Paul: "You have a new television ad that labels [Santorum] a fake. Why?" Ron Paul replies: "Because he's a fake."
February 23, 2012
Did the final four live up to expectations?
February 23, 2012
#cnndebateFebruary 23, 2012
9.04pm:

#Santorumabcn.ws/xe5mjt#TheNoteMichaelPFalconeAmyEWalterFebruary 23, 2012
February 23, 2012
http://www.youtube.com/watch?v=17V2LlAFgEk