An Illinois lawmaker says she plans to halt her push for a state-run health insurance marketplace until the U.S. Supreme Court rules on a case that could result in higher health-care costs for low- and middle-income residents.

Evanston Democratic state Rep. Robyn Gabel was unable to gather enough votes to establish a state exchange during the Legislature's fall veto session, which concluded this week.

She says she's in "wait-and-see mode" as the court considers whether health insurance subsidies are legal in states like Illinois that use the federal website to connect residents with insurance offered through President Barack Obama's health care law.

Without passing the legislation, Illinois will miss an end-of-year deadline to qualify for $270 million in federal funding to set up the marketplace.