Democrats in Washington are winning headlines and pleasing their noisy base with an all-out push to oppose, obstruct and resist Team Trump. But what’s the long-term strategy?

What plays to lefties and liberals on the coasts won’t work so well in the rest of America. Case in point: A new Reuters poll shows 49 percent support for Trump’s executive order on immigration, vs. just 41 percent opposition — which is surely concentrated in Blue America.

And when the drive to slow (not stop) confirmation of President Trump’s cabinet picks is over, Dems will face real votes where it won’t be so easy to posture (or boycott).

Democrats from areas Trump carried face a real dilemma — especially the 10 red-state Dem senators up for re-election in 2018.

How many will heed the headlong rush to war declared by Senate Minority Leader Chuck Schumer and House Minority Leader Nancy Pelosi against Neil Gorsuch, Trump’s Supreme Court pick?

Within moments of his nomination, Pelosi called Gorsuch “a very hostile appointment” to women, children with autism and pretty much anyone who eats, drinks or breathes.

Hmm. Those voting to confirm his 2006 appointment to the US Court of Appeals included then-Sens. Barack Obama, Hillary Clinton, Joe Biden — and Chuck Schumer.

Nor is the opposition limited to Gorsuch. While Rex Tillerson finally was confirmed Wednesday as secretary of state (with three Democratic votes and one independent’s), Dems boycotted hearings on three other Trump nominees.

In two of those cases, the Senate Finance Committee moved ahead anyway, breaking the boycott by suspending the rule that at least one member from each party be present. Unusual, but not when that party is intent on staging empty theater.

As Sen. Lindsey Graham notes, the Dems’ childish antics are only “going to make their comeback harder — if they can have a comeback.”