They once called judicial nominee filibusters unconstitutional.

FROM NPR:

Hamilton has served for 15 years as a federal district court judge in Indiana. He is so widely respected that Sen. Richard Lugar, a Republican, strongly endorsed his nomination, as did the state president of the conservative Federalist Society. At the confirmation hearing, Lugar praised Hamilton's "brilliance," "fairness" and commitment to law. "He is the type of lawyer and the type of person one wants to see on the federal bench," Lugar said.

(snip)

Democratic filibusters of some of President George W. Bush's judicial nominees so infuriated Republicans that they threatened to do away with the century-and-a-half-old rule, using an end run that came to be known as the "nuclear option."

In 2005, Republicans spoke for days about the insult of the judicial filibuster, calling it unconstitutional. Sen. Mitch McConnell of Kentucky, now the Senate Republican leader, said in 2005 of the Democrats: "For the first time in 214 years they've changed the advise and consent responsibilities to advise and obstruct."

(snip)

Now, many Republicans are maintaining that Hamilton presents just such an extraordinary circumstance — and Sessions said Monday that regardless, Republicans no longer feel bound by the earlier agreement.

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