Thomas L. Friedman: This should be Biden’s bumper sticker

I almost — but not quite — feel sorry for Donald Trump. He’s at war with two “invisible enemies” at once — the coronavirus and Joe Biden — and both remain highly elusive, the pathogen by nature and the politician by design.Biden, who made a rare public appearance on Tuesday, has been wise to stay out of sight. Trump is now in a full-on race to the bottom with himself, pushing uglier and uglier positions that appeal to smaller and smaller segments of the