Can Congress Do Anything about Trump’s Abuse of the Pardon Power?

Abuse here does not mean he uses it too often, rather that he uses it to further his own interests or that of his party.

The bulk are typically issued at the end of the term; expect a flurry in December if he loses in November. The issue isn't the volume, though, so much as the nature. Most presidents have not pardoned someone who was a witness in an investigation into them.