As the team on Gov. Pawlenty’s now concluded presidential campaign works to recoup a campaign debt of some half-million dollars, their fingers have begun pointing toward the campaign’s manager, Nick Ayers, as the person to blame for the decisions that put the campaign into debt — and, by many accounts, as simply an unpleasant human being to work with. “I would blame him 100 percent for racking up the debt,” said one senior staff member of the Pawlenty campaign. Ayers declined to weigh in on that statement, or any of the others made in this story. “I believe a campaign...