The attorneys for former President Donald Trump will make procedural objections a focus during the Senate impeachment trial next week, including by questioning whether Trump can be tried as a private citizen, one of his attorneys said. House Democrats, joined by 10 Republicans, impeached Trump on a single charge of inciting a mob that breached the Capitol on Jan. 6. In a trial memorandum, Trump attorneys denied the allegations and challenged the constitutionality of trying Trump after he had left office. “This is ‘Law School 101’ stuff. This isn’t advanced legal treatises in bound volumes that are used in the Supreme Court as references,” Attorney Bruce Castor Jr. told Reuters. “We’re trying to win a case on a bunch of procedural objections.” Challenging the constitutionality of the proceedings will likely be enough to exonerate the president considering that all but five Republican senators had already voted in favor of a resolution …