The Democrats have an answer for the Republicans if the Supreme Court throws out President Barack Obama’s healthcare law on Thursday: Good luck with that.

It may be bravado in the face of what would seem to be huge disappointment, but some Democrats insist they relish the prospect of watching congressional Republicans grapple with how to deal with the massive and troubled industry. Annual U.S. spending on healthcare already totals $2.6 trillion a year. Skyrocketing costs are expected to make spending balloon to $4.8 trillion, or one-fifth of U.S. gross domestic product over the coming decade, according to the Centers for Medicare and Medicaid Services.

“It will be time for the Republicans to say what they are going to do. This is on them,” Representative Debbie Wasserman Schultz, chairwoman of the Democratic National Committee, said on Wednesday at the Reuters Washington Summit.

“We’re already made our proposal. In my mind, the ball will be in their court,” she said. “They’re the ones that opposed this from the beginning, they’re the one that never proposed anything to ensure that you can cover every American. Never proposed anything to ensure that healthcare coverage will be affordable and accessible. … They’re the ones who are going to have to step up and say, ‘What are we going to do now?’ [Democrats] are not the majority in Congress.”

The Supreme Court is due to issue a landmark ruling on Thursday that will determine whether Obama’s healthcare law is constitutional. The 2010 Patient Protection and Affordable Care Act is the most sweeping healthcare legislation since Medicare and Medicaid in the 1960s. As Obama’s signature domestic policy achievement, its fate also has broad implications for consumers, employers, the healthcare industry and – potentially – the Nov. 6 election.