Pictured: U.S. Sen. Chris Murphy following 14 hour filibuster on gun control

Senator Chris Murphy (D-CT) (c.) collects himself as members of his staff catch up with him in a hall after he ended a 14-hour filibuster in the hopes of pressuring the US Senate to take action on gun control measures at the US Capitol in Washington on Thursday. Jonathan Ernst/Reuters. Via Christian Science Monitor.

Senator Chris Murphy (D-CT) (c.) collects himself as members of his staff catch up with him in a hall after he ended a 14-hour filibuster in the hopes of pressuring the US Senate to take action on gun control measures at the US Capitol in Washington on Thursday. Jonathan Ernst/Reuters. Via Christian Science Monitor.

On June 15, 2016, in the wake of a mass shooting in Orlando, Florida, Senator Chris Murphy, Democrat of Connecticut, launched a filibuster in the United States Senate, promising to hold the floor “for as long as I can” or until Congress acts on gun control legislation.

Murphy formally yielded the floor, ending the filibuster, at 2:11 a.m. EDT the following day, after 14 hours and 50 minutes. The entire 14-hour and 50-minute filibuster, was broadcast by C-SPAN.

One year ago, what has changed?

Updated 11:47 am.