WASHINGTON — Senate Minority Leader Chuck Schumer used an upper chamber procedure Wednesday to block a national security briefing hosted by the Senate Judiciary Committee, irritating Judiciary Chairman Chuck Grassley.

The rule that Schumer had invoked, which he has been exercising the use of over the past two weeks, blocks Senate committee business from happening two hours after the Senate convenes session for the day. Schumer has consistently used the procedure as a way to delay business in Senate to make demands on Republicans on the health care bill.

The rarely-used tactic has cut short a committee hearing on free speech, stopped a hearing on Russian meddling in the U.S. elections and blocked a mark-up to advance bipartisan anti-human trafficking legislation.

“The federal government’s primary responsibility is to protect the American people, so it’s unbelievable that the Minority Leader would block Senators from both parties from holding a national security briefing to examine our nation’s most critical tools to protect the homeland,” Sen. Grassley said in a statement.

Grassley had sent a joint letter with subcommittee judiciary chairman Lindsey Graham to the FBI Tuesday requesting all documents related to the FBI FISA surveillance requests on the Russia investigation.

“Today, the Judiciary Committee was set to hear from senior intelligence officials about highly sensitive intelligence gathering authorities that will soon require action from Congress. It’s disturbing and reckless for the Minority Leader to block the briefing. We’ve seen too many recent reminders of how unsafe the world is today. This is no time to play politics with our national security,” he said.

Follow Kerry on Twitter