Opinion: Trump's Wednesday afternoon massacre

Given President Donald Trump's prolonged campaign to degrade Attorney General Jeff Sessions as "weak," "beleaguered" and "scared stiff and Missing in Action," it seemed inevitable that Trump would fire Sessions shortly after midterms. Few expected, however, that Trump would drop the ax on Sessions before the voting machines even had a chance to cool. Trump's Wednesday Afternoon Massacre poses a serious, even existential, threat to Special Counsel Robert Mueller's ongoing investigation.