Each of those unilateral moves by a Senate majority to weaken the Senate’s age-old precedents centered on nominations, leaving the legislative filibuster and its 60-vote threshold unscathed. But some senators say it’s just a matter of time before even that Senate institution is more or less wiped away by a majority tired of seeing its big ideas blocked…

“It’ll go down the road,” Senate Appropriations Chairman Richard Shelby (R-Ala.) said of the filibuster. “If the Democrats take control of the Senate and we’re in a strong minority then they’ll change it immediately.”

“If eliminating the legislative filibuster will serve Sen. McConnell’s purposes, he’ll eliminate it,” said Senate Minority Whip Dick Durbin (D-Ill.). “After what Sen. McConnell has done to this institution, there will be many people who will be putting pressure on us to do the same thing.”