Mr. Trump’s first 100 days

Historians will have a hard time comparing Donald Trump’s first 100 days to the performance of other presidents in the modern era. Even the most slanted Democratic hagiographers must concede that the 45th and 47th president is a dynamo, unlike 46, the lethargic Joseph R. Biden, who frequently signaled the end of the workday by “calling a lid” at 10 a.m.