WASHINGTON — Repeal and replace “Obamacare.” Just repeal. Or let it fail — maybe with a little nudge. President Donald Trump has sent a flurry of mixed messages, raising questions about the White House strategy on health care.

Democrats say Trump’s confusing signals are part of a strategy to destabilize the Affordable Care Act, as a way to force recalcitrant Republicans in Congress to repeal former President Barack Obama’s signature law.

White House officials say they remain focused on trying to get a bill passed.

“The White House does not have a strategy,” said health industry consultant Robert Laszewski, an “Obamacare” critic who believes the administration is at a loss.

Another theory: Trump may have to cut his losses and take modest steps to sustain subsidized insurance markets if the GOP’s legislative drive fails. A Senate vote is planned Tuesday.

“Improving but fragile,” is how Standard & Poor’s analyst Deep Banerjee describes the insurance exchanges.