When 2024 Democratic presidential nominee Kamala Harris presented her new running mate, Tim Walz, at a huge campaign rally in Philadelphia on Tuesday, August 6, the Minnesota governor slammed and mocked Donald Trump’s running mate, Sen. JD Vance of Ohio — and declared, “I can’t wait to debate the guy.” But The New Republic’s Edith Olmsted, in a biting article published on August 7, argues that so far, Vance is offering “bad excuses” to avoid debating Walz. “Just as Vance can’t seem to come to terms with the fact that he’s not debating Harris anymore,” Olmsted observes, “Trump can’t seem to cop…