By Matthew Sheffield | July 27, 2007 | 3:44 PM EDT

For various reasons, the majority of the Republican presidential campaigns have said they are not going to participate in a CNN debate co-sponsored with the Google-owned YouTube.com.

Despite the fact that the Democrats' YouTube debate featured left-wing questions far out of proportion to questions from the right (see NB's prior coverage of the debate here), Republican activist Patrick Ruffini is arguing the GOP is really dropping the ball. Here's an excerpt from an open letter he's attached to a petition urging the candidates to change their minds:

We've read the news reports that only two of your fellow candidates have agreed to attend the Republican Party of Florida/YouTube debate, and there are major candidates considering snubbing the event.

As Republicans, we believe this is a serious mistake. Every Democratic candidate eagerly accepted the opportunity to answer questions from the American people via YouTube, even Hillary Clinton, the most cautious and calculating of the bunch.