Donald Trump visited Congress this week to declare the state of the union “stronger than ever before.” Speaker Nancy Pelosi concluded the evening by highlighting the state of the Democratic Party: Intensely—perhaps fatally—divided.

That’s the prism through which to view this week’s headlines: The Iowa debacle, Democrats’ State of the Union theatrics, the president’s impeachment acquittal. Division has coursed through Democratic politics for at least the past four years. The media tries hard to present this split as nothing more than the usual intraparty tension. It’s significantly deeper than that, and Democratic hopes for the 2020 election hinge on it.

DEROY MURDOCK: DEMOCRATS, TRUMP IS GIVING AMERICA THE ECONOMY YOU CLAIM TO WANT – BE HONEST AND SAY THANKS

The Iowa derailment didn’t begin Monday afternoon or even in the months leading up to the failure of the results-reporting app. This train went off the tracks right after the 2016 Democratic primary contest, as a bitter progressive wing of the party stewed over Bernie Sanders’s defeat. They accused the Democratic establishment of rigging the process for Hillary Clinton—starting with Iowa, where the results were close, and where Mr. Sanders’s supporters outright challenged the legitimacy of Mrs. Clinton’s victory.

CLICK HERE TO GET THE FOX NEWS APP

Hoping for peace, and in the name of “transparency,” party officials adopted the wildly complicated system on display Monday. The delayed results continue to be riddled with errors, making the outcome even less credible than in 2016. Sanders allies are already crying foul. They’re also pointing to new Democratic National Committee rules for debates, and nominations for convention spots, as evidence that one side of the party is again trying to deny the other side a victory.

CLICK HERE TO CONTINUE READING KIMBERLEY STRASSEL'S COLUMN IN THE WALL STREET JOURNAL