This endorsement couldn’t be less surprising:

Mitt Romney, the former governor of Massachusetts, has gotten this far with a guile that allows him to say whatever he thinks an audience wants to hear. But he has tied himself to the ultraconservative forces that control the Republican Party and embraced their policies, including reckless budget cuts and 30-year-old, discredited trickle-down ideas. Voters may still be confused about Mr. Romney’s true identity, but they know the Republican Party, and a Romney administration would reflect its agenda. Mr. Romney’s choice of Representative Paul Ryan as his running mate says volumes about that.

We have criticized individual policy choices that Mr. Obama has made over the last four years, and have been impatient with his unwillingness to throw himself into the political fight. But he has shaken off the hesitancy that cost him the first debate, and he approaches the election clearly ready for the partisan battles that would follow his victory.

We are confident he would challenge the Republicans in the “fiscal cliff” battle even if it meant calling their bluff, letting the Bush tax cuts expire and forcing them to confront the budget sequester they created. Electing Mr. Romney would eliminate any hope of deficit reduction that included increased revenues.

In the poisonous atmosphere of this campaign, it may be easy to overlook Mr. Obama’s many important achievements, including carrying out the economic stimulus, saving the auto industry, improving fuel efficiency standards, and making two very fine Supreme Court appointments.