Hey, remember when former first lady Michelle Obama bloviated at the 2016 DNC about taking the high road when their opponents go low? In theory, it’s a sound bite that certainly seems noble enough. In practice, the left hasn’t exactly been following that mantra — not that that should surprise anyone. But, oh, at least the campaign of President Joe Biden has remained on the up-and-up. As the left keeps reminding everyone after Biden’s inept debate performance on June 27, sure, he may have the mental acuity of a comatose llama, but at least he’s a really good guy, unlike that GOP meanie-face. (…