The U.S. Senate failed to advance two different bills addressing healthcare coverage today as expanded Affordable Care Act subsidies are set to expire at the end of the month.

Both bills lacked enough support to cross the Senate’s 60-vote filibuster threshold.

A Republican bill to replace expiring healthcare subsidies with health savings accounts went down on a 51-48 vote. All Democrats and one Republican, Senator Rand Paul of Kentucky, opposed the G.O.P. proposal.

A vote to advance a Democratic bill to extend healthcare subsidies for three years also failed 51-48. Four Republicans — Senators Josh Hawley of Missouri, Susan Collins of Maine and Lisa Murkowski and Dan Sullivan, both of Alaska — joined Democrats in support of taking up the extension.

About 22 million Americans receive the

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