Twitter erupted on Monday after four failed Senate votes on gun control. After the worst mass shooting in U.S. history, Sen. Christopher Murphy (D-Conn.) staged a nearly 15-hour filibuster on gun control, which resulted in votes on the gun control amendments.

The Senate blocked one particular amendment aimed at closing the "gun show loophole" and expanding background checks. This amendment was proposed by Murphy, Sen. Cory Booker (D-N.J), and Sen. Chuck Schumer (D-N.Y.).

Many on Twitter are incensed that the amendment failed in a 44-56 vote:

The backlash shouldn't be a surprise: Following the Orlando shooting, American support for gun control spiked.

Others highlighted the influence the NRA has over lawmakers:

Many on Twitter pointed out the tragic absurdity of the decision:

U.S. Senators who were hoping for gun control reform lobbed criticism at the final vote, too:

In the past, Twitter has criticized politicians' common "thoughts and prayers" response as a distraction and an inadequate solution to a deeper policy-based issue — gun violence. Today, people on Twitter brought up this phrase in their attacks on the senate's decision:

Others suggested possible actions for people to take, following the vote: