Gov. Robert F. ­McDonnell says for now, Virginia will not set up own insurance exchange. (Jay Paul/For The Washington Post)

Republican-led Virginia made initial preparations for the federal health-care law but stopped there, hoping that either the U.S. Supreme Court or Mitt Romney would make the whole thing go away.

Since the court upheld the Affordable Care Act in June and the Republican presidential nominee lost Tuesday, Gov. Robert F. ­McDonnell has conceded that the overhaul seems to be here to stay.

“The federal health-care law, it looks like now, it will go into effect,” McDonnell told reporters at a post-election news conference. “The president is obviously behind it. The Senate is Democrat. There’s not going to be, at least at this point, . . . a complete repeal.”

In the near term, that means Virginia faces a deadline. By Nov. 16, the state must tell the federal government whether it intends to set up its own insurance exchange, use the federal one or come up with a hybrid system. The exchange is an online marketplace through which people can shop for health insurance provided by the law.

If that deadline holds — several others have been extended as the law has rolled out — McDonnell said he intends to opt for the federal exchange, at least for now. That represents a shift for the governor, who previously said that if the law stood, he would prefer to have Virginia control its own exchange.

McDonnell said there are too many unanswered questions — how much a state-run exchange would cost, how well the federal version will work, whether the private sector might fill the niche — to move ahead on a Virginia exchange. He said his letters to President Obama and Health and Human Services Secretary Kathleen Sebelius, seeking clarification in a number of areas, have gone unanswered.

“I don’t want to buy a pig in a poke for the taxpayers of Virginia,” McDonnell said. “Without further information, the only logical decision for us is to use the federal option.”

McDonnell noted that Virginia would have up to two years to shift course and move into a state-based exchange if it later decides that would be better.

The governor also said he would not expand Medicaid — something the law had tried to force on states but the Supreme Court made optional — unless the health-care program for the poor and disabled is greatly reformed. The federal government has promised to pick up most of the tab for the expansion, but McDonnell said he doubted that Washington had the means to make good on that.

Advocates for the expansion of Medic­aid objected to that stance.

“It’s time for Governor McDonnell to set aside the political games and ensure that the over 400,000 low income Virginians who qualify for health care coverage under Obamacare can access those benefits,” Anna Scholl, executive director of ProgressVA, said in a statement.