Iowa Republican U.S. Rep. Mariannette Miller-Meeks joined House GOP leaders to promote a health care overhaul they say would lower premiums and curb costs tied to the Affordable Care Act. But as Congress debates alternatives to extending ACA subsidies,

U.S. Rep. Mariannette Miller-Meeks is the lead sponsor on a GOP bill aimed at making health care more affordable, without extending ACA subsidies.

Lawmakers could not reach an agreement on extending the tax credits.

Senators rejected a Democratic bill to extend ACA subsidies for three years and a Republican alternative that would have created new health savings accounts.

House Republicans offer health care bill without extending Obamacare subsidies but Democrats oppose the proposal.

The Senate blocked a pair of proposals this afternoon that were designed to avert rising health care premiums. The results made it all but certain that expanded Affordable Care Act subsidies, which millions of Americans depend on to afford health coverage, would expire at the end of the month.