JacksJack Laurence, the 17-year-old who had hoped to represent Hillary Clinton at the Democratic National Convention, was shut down this weekend at the state convention. His uncle/campaign manager left a cryptic message on my cell phone Sunday — something about the at-large delegates already being chosen before the state convention. I couldn’t get in touch with him today, so I’ll post more when I know more.Also, another 17-year-old Jack with a famous grandfather politician — Booth Gardner — was at the state convention as well. This Jack, however, is an Obama supporter. I don’t know how he did yet but you’ll know as soon as I do.