The political kerfuffle of the week is quickly fading away, as modern political kerfuffles usually do, and so maybe it’s time to point out the obvious regarding the Biden Cover-up frenzy that’s now mercifully easing: Democrats, bad, very bad, for covering up Joe Biden’s mental state while at same time hypocritically questioning Donald Trump’s mental state. Just as it’s bad, very bad, for Republicans to remain silent about Trump’s mental state while at the same time hypocritically questioning what Dems knew about Biden’s mental state. … The Globe’s Jeff Jacoby tackled the issue of partisan hackery and hypocrisy back in January. And Bill Maher was attacking political hypocrisy in general the other night. …