As we continue our series of political endorsements, the editorial board invites you to join in. Whom would you endorse in the contest for president, and why? As always, click on the comments link to weigh in, but note this caveat: If you would like us to consider your endorsement for publication in the newspaper this Sunday, please include your real name and city of residence. We'll publish as many as we can fit in the dead-tree version of Opinion Exchange, along with our own views.