Is Donald Trump feeling overstimulated? First he scorned stimulus talks with the Democrats, tweeting on Tuesday afternoon that he was summarily ending them. Then, a few hours later, he started backpedaling after the stock market plummeted, demanding that Congress send him legislation to stimulate the economy. Next, in the wee hours, he issued a belligerent tweet about declassifying all the intelligence documents related to the Russia investigation, as though he could win the election by running once more against Hillary Clinton rather than Joe Biden.