The 3.94% tumble in the Dow Jones Industrial Average was the worst day since 2020. The declines in the S&P 500 and Nasdaq were worse. Investors apparently had believed the hopeful chatter that inflation was headed downward, and that the Federal Reserve wouldn’t need to raise interest rates so high as to court a recession. Never trust a politician. Investing lesson of the week: Never trusted a politician in the U.S. The Dow Jones dropped 3% on Tuesday, the worst since 2020, and the Nasdaq tumbled worse than any other major market drop since 2010. Inflation has remained high and sticky, and markets promptly fell out of bed, we say. We don’t trust politicians in the stock market. . . .