One basic rule of politics is you don't debate down because you have nothing to gain and potentially a lot to lose (not that I think Gravel would outclass Paul; I'm just saying it's the general rule). Even most people who are paying close attention probably don't even know that Gravel is still in the race. And the media tried to portray it last year like he and Ron had an equal chance to win -- zero. So why reinforce that perception? Paul and Gravel are in different universes at this point in terms of being viable.
older than rocks. besides the "get together" was scheduled just a short time ago, but from what I recall, Gravel had to cancel his appearance due to a flu or something like that.
yeah, Gravel is still in the race, but he's spending most of his time on college campuses begging for cash... airing his one man debates on his website