For months, Republican in Congress have been hell-bent on undermining President Obama’s most important domestic policy goal: health care reform. But while their goal is the same, House and Senate Republicans have employed different strategies.

In the House, the Republican campaign has largely rested on obfuscation. Death panels, sex clinics and the like. The tactic, though effective, ultimately failed. The House passed the Affordable Health Care for America Act with a 220-215 vote. Rep. Joseph Cao from Louisiana, who represents one of the most Democratic-leaning districts in the country, was the lone Republican casting an aye vote.

In the Senate, the Republican campaign rests largely on obstruction. Much like in the House, Senate Republicans have made it abundantly clear that they will do what it takes to delay and potentially derail health care reform. But while they spew their fair share of misinformation, their opposition ultimately rests not on having a persuasive argument, but on using rules of the Senate.

On Monday, this tactic was clarified when the office of Sen. Judd Gregg of New Hampshire sent a letter to Senate Republicans instructing them on how to obstruct the health care reform debate. Gregg advises Republicans to use procedural tactics to do what House Republicans could not do.

That’s not right. Senate Democrats, led by Sen. Reid, must push health care reform forward in spite of such tactics. As the Boston Globe puts it, “Democrats shouldn’t let it happen. This is a test of their unity and leadership.”

The Hill has more on Gregg’s letter.