Fascinating and important stuff in presidential politics this weekend as the Joe Biden and Donald Trump campaigns engaged in detailed discussions about an impending decision that one of them will have to make about the corporate tax rate. While both sides acknowledged that marginal adjustments to the rate could have unforeseen effects on the balance between productivity and worker wage growth, they--haha, just kidding. The main activity in presidential politics for the past 36 hours has been arguing about which candidate is allegedly more of a drooling vegetable. Both candidates provided arguable evidence to support the opposition's claims of senility on Saturday night. Biden, appearing at what must by law be described as a star-studded Hollywood fundraiser featuring actor George Clooney and Netflix producer Barack Obama, seemed to "freeze" for a second before leaving the stage, but only if you look at the video from a certain angle shot from the crowd.