SALEM, Ore. (AP) — A $48 million grant from the federal government to help Oregon create a health insurance exchange is endangered, and some Democrats say it's because of Republican opposition to the federal health care overhaul.

The budget has set a deadline of Tuesday to post a bill that would formally apply for the money, and Republicans and Democrats had not agreed Monday to let it happen. Oregon's Medicaid system was one of seven in the U.S. to be selected for grants to create insurance exchanges that could be models for other states.

An exchange would help connect individuals and small businesses with health insurance and determine whether people qualify for federal subsidies under the health care overhaul signed last year by President Barack Obama.