Victor Davis Hanson‘s latest National Review Online column ponders the political Left’s overheated reaction to its loss of political power.

The Trump agenda enrages the Left in much the same manner that Obamacare, the Obama tax hikes, Obama’s liberal Supreme Court picks, and the Iran nuclear deal goaded the Right.

Yet the current progressive meltdown is about more than just political differences. The outrage is mostly about power — or rather, the utter and unexpected loss of it.

In 2009, Obama seemed to usher in a progressive revolution for a generation.

Democrats controlled the House. They had a supermajority in the Senate. Obama had a chance to ensure a liberal majority on the Supreme Court for years.

Democrats had gained on Republicans at the state and local levels. The media, universities, professional sports, Hollywood, and popular culture were all solidly left-wing.

A Republican had not won 51 percent of the popular vote in a presidential election since George H.W. Bush’s 1988 defeat of Democrat Michael Dukakis. Before 2016, Republicans had lost the popular vote in five of the previous six presidential elections.

And then visions of a generation of progressive grandeur abruptly vanished.

Obama left behind a polarized nation. Democrats lost both the House and the Senate. During Obama’s tenure, Democrats lost more than 1,000 seats at the state level.