An excerpt [slightly modified for clarity] drew my attention:
"Paul didn't meet the criteria the groups drew up last winter," which Ed Failor Jr., executive vice president of Iowans for Tax Relief said "included having an established exploratory committee and garnering at least 1 percent in a national poll." The groups sent out invitations in March to all "credible" candidates of both parties; all the Democrats declined to attend.
And so, like my last missive on Failure, er, Failor hypocrisy and bold faced ... linked here, I present you with dates of when the candidates announced 2008 Presidential Exploratory Committees (files with FEC) and links to their national poll status from January, 2007 onward. Check whether Paul met this criteria for yourself:
Note: Mr. Tancredo [date in bold] was a latecomer, who coincidentally has called for Mr. Paul's inclusion in the forum.