“Well,” the newswoman said to Donald Trump, “you’re under a tremendous amount of pressure lately.” “Why do you say that?” he asked.Story Continued Below It was April 6, 1990, and Paula Zahn on CBS actually had plenty of reasons to think Trump might be feeling anxious. It hadn’t been two months since the hyper-public, tabloid-tawdry revelation that his philandering had shattered his marriage to the mother of his first three children. He and his executives were grappling with the flawed, frantic opening of the newest, gaudiest, most expensive and most debt-bloated of his three casinos in Atlantic City. And reporters who covered money instead of celebrity had started to suss out the unsteadiness of Trump’s overall financial state. “Both in your professional life and your personal life,” Zahn offered. She asked how he was doing. “I feel great,” Trump replied. “I’m doing well.” Nearly three decades have passed. Even in Trump’s perma-perilous presidency, this is a juncture that pulses with risk. Newly empowered Democrats in Congress are ramping up multiple investigations, and talk of impeachment is impossible to avoid. Looming largest over this tumultuous battlefield, though, is the report special counsel Robert Mueller appears poised to submit to Attorney General…