Why is Trump so much more powerful this time?

Trump is exercising dramatically more power than in his first term. Here’s what provides the fuel.There are at least two measures of a president’s power. The first is how many prerogatives he claims. The second is how much resistance he faces.In his first term, Donald Trump was a weak president — maybe even historically weak. When he made even modest assertions of power, the blowback from other institutions was intense. One example: The president clearly has the power to fire the director of the FBI. Yet when Trump did so in 2017, it prompted a special-counsel investigation that threatened for...