Both House Democratic leader Nancy Pelosi and President Trump offered a surprising amount of conciliation and sweet talk (albeit with some veiled warnings) the day after the split-decision midterms. Maybe that’s what inspired some in the White House press corps to try to seize leadership of The Resistance.

“The election’s over,” and “now everybody is in love,” the president declared.

No one expects the honeymoon to last long. Yet Pelosi, who’s likely to return as speaker, offered her own olive branch to Trump, citing her “responsibility to seek common ground when we can.”

Yes, she warned that Democrats “do not intend to abandon or relinquish” investigations of the administration. But she added, “that doesn’t mean we’ll go look for a fight.” Whether her members agree remains to be seen.

The president, in turn, warmly praised Pelosi, saying he, too, looks forward to negotiating “a beautiful bipartisan-type solution” to pressing issues.

Oh, he had his own warning: Aggressive congressional investigations will be met with a “warlike posture.” And “I’m better at that game than they are.”

There was no mixed message, though, at Trump’s long news conference, where some questioners outright berated him — and drew angry barbs in return.

“CNN should be ashamed of themselves, having you working from them,” he told Jim Acosta. “You are a rude, terrible person.” He had a point: Acosta showed no respect for Trump or his office during a protracted and often nasty exchange. Nor was he alone.

Persistence is one thing — indeed, it’s a reporter’s job. Repeatedly interrupting and debating and denigrating the president is something else entirely.

All this may go over big at the National Press Club, but it does no good for the Fourth Estate or for the nation. For Trump supporters and many moderates, it confirms the suspicion that the press has abandoned all objectivity.

When the president is playing nice with the opposition, it’s not the media’s job to poison the well.