Byron York: “For months, Democrats had hoped that the specter of Trump on trial would cut into the former president’s support. Now, we are in the fifth week of the trial, with wall-to-wall media coverage, and it appears to have not affected Trump’s support at all…As RealClearPolitics analyst Sean Trende wrote recently, ‘The political science literature is pretty consistent that this is the time when the electorate’s views about the election start to harden, particularly with respect to the economy.’”