Ron Paul has a snowball's chance in Hell of winning the Republican nomination. But he's fighting hard for those delegates. Here is a little speculation as to why.
The Republican Party doesn't like Ron Paul. They've tried their best to marginalize him in the House, to the point of violating their own rules on committee chairmanships. Everything in the House and Senate is done by seniority. Ron Paul is way up there in service years and seniority, but is consistently given non-prime appointments. So Ron is going to flex a little muscle.
Ron Paul has an ace that Newt, Rick S. nor any other Republican wannabe can play. He can take his base and run Independent. He has the organization and can get the money. The rest do not.
Can he win? No. But that isn't the point. He can most likely pull enough Republican voters to cost Willard victory and send President Obama back for a second term.
That is the muscle he'll flex. Give me a substantial concession or I'll pull the plug on the Republicans for 2012. (Turn your head an cough while I just give these a little squeeze, says the Doctor."
And yes, he'd do it. He sees absolutely no real difference between the two major parties, so Mitt would be no better or worse than Barack.
Of course, this is all idle speculation. I have no knowledge of what Congressman Paul is thinking or planning.
But I do find it interesting that the Libertarian Party website on their 2012 candidates was recently changed to simply this:
Updated February 2012 -- The candidates running for the Libertarian nomination for president have been removed per the vote of the Libertarian National Committee.
Things that make you go "hmm...."