OPINION: Donald Trump falls for Nancy Pelosi's trap

President Donald Trump keeps taking Nancy Pelosi's bait.

The House speaker has spent the last two days provoking Trump, questioning his self-confidence, condescendingly confiding that she prays for him and suggesting a "family intervention."

The President's wild, improvised response Thursday suggests that so far, the speaker is winning the hugely consequential clash between Washington's top two political forces.

It's not often that Trump, the man who dismembered the most talented Republican primary field in years in 2016, seems to be struggling for traction in a face-to-face political fight.

But Pelosi...