A significant drop, but no worse than he's been before, reports Politico's Steven Shepherd.
"President Trump's approval rating has dipped to its lowest point of his term in the immediate aftermath of the redacted Mueller report release," said Tyler Sinclair, Morning Consult's vice president. "This week, 57 percent of voters disapprove, and 39 percent approve of the president's performance — a net approval rating of –18 percentage points, compared with 55 percent who disapproved and 42 percent who approved — a net approval rating of –13 percentage points — one month ago in the aftermath of Attorney General [William] Barr's summary of the Mueller report to Congress."
I'm amazed it dropped under 40%, to be honest. Accepting that four in ten American voters are unequivocally, non-negotiably, unarguably with Trump is the basic political challenge for everyone else.