An aide to House Speaker Nancy Pelosi (D-Calif.) says the list is put together during each Congress, but that this year’s number is likely the largest ever. However, he said Pelosi blames GOP senators, not Majority Leader Harry Reid (D-Nev.) or Majority Whip Dick Durbin (D-Ill.).

“The Speaker believes that the filibuster has its place, but clearly Senate Republicans are taking what was once a rare procedural move and abusing it to the detriment of progress for America’s working families,” said Pelosi spokesman Drew Hammill.