The DNC rules not only allow it, they encourage it:

http://www.pledgednotbound.com/

First, I have no idea what McCain was doing out the country this past week. I hope it gave the campaign staff a chance to get its act together. But the suggestion recently to send a bunch of money to Mexico to assist them with border control is flushing money down the toilet.

Second, if McCain doesn't act quickly, Obama, though he's lying, will be on the right of him on almost every issue except suggesting that we be in Iraq in the first place. Obama can't go off the reservation on energy, so McCain needs to let go of his idiotic attachment to Anwar. Drill ASAP everywhere to use it as a bridge to the energy future. On top of that, he needs to come out with a list in order of priority of the energy initiatives he'll propose. Obama can't suggest nuclear because the left will go nuts; they've been stuck at Three Mile Island for 30 years. Also, McCain needs to show how in the tank Obama is with the moronic ethanol alternative. This approach will leave Obama advocating solar, wind, and futuristic "renewables" that voters will say, "WTF?"

Third, McCain has to get religion on immigration and abandon amnesty. Sorry if it's hard hearted, but it's time to round 'em and send illegals home. Some border areas are getting overrun. If the corporate farms need labor, why can't churches and community organizations coordinate an effort to ship inner-city teenagers and young adults out there to work. Sounds crazy but create New Deal era program like the Civilian Conservation Corp. Private employers would pay the wages, though the federal government might provide some administrative assistance of some kind.

In any event, I'll still be voting for McCain because I fear an Obama presidency. McCain is the only candidate that Republicans could have nominated and still be in the race. But for the past month and going to election day, it sure seems as if McCain is doing his very best to throw the election. Sorry to say, much as I loathe Obama and much as I find McCain's life very compelling, he seems to be a total rockhead.