Mark Kelly, the husband of former Rep. Gabrielle Giffords (D-Ariz.), on Sunday warned GOP lawmakers not to filibuster efforts to pass gun control in the Senate.

“It is important to take action and the American people are demanding action now,” said Kelly on “Fox News Sunday.”

Kelly’s comments came in response to five Senate Republicans — Sens. Marco Rubio (Fla.), Rand Paul (Ky.), Ted Cruz (Texas), Mike Lee (Utah) and James Inhofe (Okla.) – who said last week that they will filibuster any additional gun restrictions, as Senate Majority Leader Harry Reid (D-Nev.) prepares to move a gun bill.