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“Every day the Senate delays, more people die from lack of health care,” he wrote.

He also argued the Senate has been more unfair to Mr. Obama.

“This rule of legislative procedure apparently only applies to Democratic initiatives that help ordinary people. Throughout the administration of President George W. Bush, the Senate passed much of its key legislation by majority vote,” Mr. Grayson wrote.

“The filibuster should apply to the initiatives of both parties or to neither. Why should launching wars, and cutting taxes for the rich, require only 51 votes while saving lives requires 60?” he says.

But changing the rules is a painstaking process, and both Democrats and Republicans, including Mr. Obama during his four years in the Senate, have made full use of filibusters — making any change unlikely.