In the wake of yet another deadly mass shooting, Democratic leaders have urged Senate Majority Leader Mitch McConnell (R-Ky.) to do something about the “gun violence epidemic” in the United States by taking up legislation that would expand federal background checks on gun purchases.

Senate Minority Leader Chuck Schumer (D-N.Y.) and House Speaker Nancy Pelosi (D-Calif.) pressed McConnell on Saturday to take action on H.R. 8, also known as the Bipartisan Background Checks Act of 2019. The bill — which seeks to close loopholes allowing private or online sales of guns and sales at gun shows without background checks — was passed by the Democratic-controlled House in February.

McConnell has faced mounting pressure from Democratic lawmakers and others to bring the legislation to the Senate floor, but he has yet to do so.

24 PHOTOS Mitch McConnell through the years See Gallery Mitch McConnell through the years U.S. Senator Mitch McConnell (R-Ky.), left, talked with United States Enrichment Corp. General Manager Howard Pulley during a media tour of the uranium-enrichment Paducah Gaseous Diffusion Plant in the plant's Central Control Facility (C-300) on Thursday, Aug. 12, 1999 near Paducah, Ky. A sealed federal lawsuit filed in June by the Natural Resources Defense Council and three plant employees alleges that thousands of unsuspecting workers were exposed to dust containing plutonium and other radioactive metals. (Photo by Billy Suratt) Senator Mitch McConnell (L) discusses Republican tax cuts as Sen. Patrick Moynihan looks on during NBC's ''Meet the Press'' August 1, 1999 in Washington, DC. (photo by Richard Ellis) Senator Christopher Dodd, left, and Senator Mitch McConnell punch the 'first nails' into a piece of wood during a nail-driving ceremony December 6, 2000 on Capitol Hill in Washington D.C. Both senators participated in the ceremony to signify the beginning of construction of the 2001 Inaugural platform on the West Front Terrace of the U.S. Capitol. (Photo by Alex Wong/Newsmakers) Mitch McConnell R-Ky. holds a press conference on campaign finance reform. (Photo by Douglas Graham/Congressional Quarterly/Getty Images) United States President George W. Bush signs nominations for 13 cabinet members in a ceremony in the President's Room in the Capitol Building, in Washington January 20, 2001. From left to right are Senator Mitch McConnell (R-Ky), Senate Majority Leader Trent Lott, (R-Ms), Vice-President Richard Cheney, Senator Strom Thurmond, (R-SC) and Speaker of the House Dennis Hastert (R-Il). (STR New / Reuters) Sen. Mitch McConnell, R-Ky., talks to reporters after a news conference on his campaign finance bill. (Photo by Scott J. Ferrell/Congressional Quarterly/Getty Images) Senate Majority Whip Mitch McConnell (R-KY) introduces his wife Labor Secretary Elaine Chao on the third day of the Republican National Convention in New York, September 1, 2004. (Photo by Chris Kleponis/Bloomberg via Getty Images) Sens. Mitch McConnell, R-Ky, left, speaks with Sen. Bill Frist, R-Tenn., after the Senate Luncheons. (Photo By Tom Williams/Roll Call/Getty Images) U.S. Senate Majority Leader Bill Frist (R-TN) (C) and Senators Mitch McConnell (R-KY) (L) and Kay Bailey Hutchison (R-TX) smile at a joint news conference on Capitol Hill in Washington July 28, 2005. (REUTERS/Yuri Gripas YG/TZ) U.S. Senate Minority Leader Mitch McConnell (R-KY) (C), flanked by Senator Jon Kyl (R-AZ) (L-R), Senator Lamar Alexander (R-TN), Senator John Barrasso (R-WY), Senator John Cornyn (R-TX) and Senator John Thune (R-SD), talks to reporters about the senate's passage of debt ceiling legislation at the U.S. Capitol in Washington, August 2, 2011. Congress buried the specter of a debt default by finally passing a deficit-cutting package on Tuesday, but the shadow lingered of a possible painful downgrade of the top-notch American credit rating. (REUTERS/Jonathan Ernst) Senate Minority Leader Mitch McConnell (R-KY) walks to his office at the Capitol in Washington December 17, 2011. The U.S. Senate on Saturday passed a $915 billion bill to fund most federal agency activities through next September and avert a government shutdown. (REUTERS/Benjamin Myers) Incoming U.S. Senate Majority Leader Bill Frist (C) (R-TN) attends a meeting with Republican leadership, Senate Majority Whip Mitch McConnell (L) (R-KY) and GOP conference chairman, Senator Rick Santorum (R-PA) on Capitol Hill January 6, 2003 in Washington, DC. Frist was voted in as majority leader by his colleagues when former majority leader, Trent Lott, stepped down last month. (Photo by Mark Wilson/Getty Images) Sen. Mitch McConnell, R-Ky., speaking, Sen. John Cornyn, R-Texas, and Sen. Norm Coleman, R-Minn., during a news conference on Miguel A. Estrada's withdrawal of his nomination to be a judge on the U.S. Court of Appeals for the D.C. Circuit. From CQToday: In numerous news conferences and floor speeches throughout the day, Republicans castigated Democrats for 'obstructing' the nominations of Estrada and other judicial candidates; most Democrats said they were blocking an up-or-down vote on the nomination as part of their bid for memos and other work papers from Estrada's time in the Clinton administration's Office of the Solicitor General. (Photo by Scott J. Ferrell/Congressional Quarterly/Getty Images) Senate Minority Leader Mitch McConnell (R-KY) speaks about the stimulus package on February 2, 2009 in Washington, DC. Republicans are criticizing the Democrat's near trillion dollar stimulus package and are asking for revisions before the Senate votes later in the week. (Photo by Mark Wilson/Getty Images) US Senator Mitch McConnell, R-KY, is sworn in by Vice President Dick Cheney (R) as his wife Labor Secretary Elaine Chao holds the Bible during a swearing in reenactment ceremony at the US Capitol on January 6, 2009 in Washington, DC. (KAREN BLEIER/AFP/Getty Images) U.S. Vice President-elect Mike Pence (R) and Senate Majority Leader Mitch McConnell (R-KY) wave as they walk before their meeting on Capitol Hill in Washington, U.S., November 30, 2016. (REUTERS/Yuri Gripas) US House Minority Leader John Boehner (L)R-OH and Senate Minority Leader Mitch McConnell (R-KY) make remarks to the press outside the West Wing after their meeting with President Barack Obama on January 23, 2009 at the White House in Washington, DC. (TIM SLOAN/AFP/Getty Images) Senate Minority Leader Mitch McConnell (R-KY) (C) waves goodbye to reporters after a news conference with (L-R) Sen. John Thune (R-SD), Sen. John Barrasso (R0WY) and Sen. John Cornyn (R-TX) after the weekly Senate Republican Caucus policy luncheon at the U.S. Capitol May 8, 2012 in Washington, DC. Despite the Senate voting against opening debate on a bill to keep interest rates on federal Stafford loans from doubling from 3.4 percent to 6.8 percent on July 1, 2012, McConnell said that both the GOP and Democrats agree on keeping rates down but need to find a way to pay for it. (Photo by Chip Somodevilla/Getty Images) Sen. Mitch McConnell, R-Ky., makes his way to the senate luncheons in the Capitol. (Photo By Tom Williams/CQ Roll Call) From left, Senate Minority Leader Mitch McConnell, R-Ky., Senate Majority Leader Harry Reid, D-Nev., and Speaker John Boehner, R-Ohio, attend a Congressional Gold Medal ceremony to mark the 50th anniversary of the Civil Rights Act of 1964, in the Capitol's rotunda, June 24, 2014. (Photo By Tom Williams/CQ Roll Call) Senate Minority Leader Mitch McConnell testifies along with Senate Majority Leader Harry Reid (not pictured) during the Senate Judiciary Committee hearing on 'Examining a Constitutional Amendment to Restore Democracy to the American People,' focusing on campaign finance on Tuesday, June 3, 2014. (Photo By Bill Clark/CQ Roll Call) Senate Majority Leader Mitch McConnell (R-KY) speaks about the election of Donald Trump in the U.S. presidential election in Washington, U.S., November 9, 2016. (REUTERS/Joshua Roberts) El líder de la mayoría del Senado, Mitch McConnell, habla con la prensa tras salir del Senado el jueves 19 de diciembre de 2019 en el Capitolio, Washington. (AP Foto/Patrick Semansky) Senate Majority Leader Mitch McConnell, Republican of Kentucky, walks through the US Capitol in Washington, DC, December 19, 2019. - Senate Majority Leader Mitch McConnell strongly condemned the impeachment of President Donald Trump by House Democrats on Thursday and said it was now up to the Republican-led Senate to "put this right."McConnell, speaking on the Senate floor, said the House of Representatives had conducted the "most rushed, least thorough and most unfair impeachment inquiry in modern history." (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

The majority leader “should bring up H.R. 8 the week Congress returns,” Schumer said in a Saturday night tweet, hours after a gunman went on a shooting rampage in West Texas, killing multiple people and injuring at least 21. Three officers were among those who were injured, police said. A 17-month-old baby was also wounded in the attack.

“Enough is enough,” Pelosi said later in a statement. “Every day, the epidemic of gun violence inflicts a devastating toll in communities in every corner of our country, forcing far too many to endure heartbreak and tragedy.”

“The Republican Senate must end its obstruction and finally pass the commonsense, bipartisan, House-passed gun violence prevention legislation that the country is demanding,” she added.

Congress will reconvene on Sept. 9 after its summer recess.

Our thoughts are with the victims, their families, & everyone injured in the shooting in Odessa & Midland, TX.



Thank you to the first responders who risked their lives to stop the threat.@senatemajldr should bring up H.R. 8 the week Congress returns. We must #endgunviolence. — Chuck Schumer (@SenSchumer) September 1, 2019

Enough is enough. Every day, the gun violence epidemic inflicts a devastating toll in communities across America, this time

in West Texas. The @SenateGOP must end its obstruction & finally pass House-approved legislation to #EndGunViolence. https://t.co/RcoVI6Eebm — Nancy Pelosi (@SpeakerPelosi) September 1, 2019

Other Democratic lawmakers, including Sens. Elizabeth Warren of Massachusetts and Kirsten Gillibrand of New York, also called on McConnell to do more.

“America is done waiting for you,” Warren, a 2020 presidential contender, tweeted.

Rep. Katie Porter (D-Calif.) appealed to McConnell to move on H.R. 8 as well as H.R. 1112, another gun control bill passed by the House in February that would require a gun dealer to wait 10 days to hear back from federal authorities about a potential buyer’s background check before moving ahead with a gun sale.

Time’s up, @SenateMajLdr. Let’s vote on gun safety legislation NOW. Every day you wait, more tragedies happen.



Do something, Senator McConnell. America is done waiting for you. — Elizabeth Warren (@SenWarren) September 1, 2019

I’m thinking tonight of those who lost their lives in Odessa and Midland and the loved ones they left behind. It’s abundantly clear that we must take action to curb gun violence in this country.@senatemajldr allowing votes on HR8 and HR1112 would be a good start. — Rep. Katie Porter (@RepKatiePorter) September 1, 2019

Another horrific mass shooting in Texas. I’m heartbroken for the victims in Odessa and Midland and their families.



How many more times will the Senate do nothing? It’s time to end our gun violence epidemic. @senatemajldr, will you stand up for families and let the Senate vote? — Sen. Kirsten Gillibrand (@gillibrandny) September 1, 2019

The hashtag #MassacreMitch started trending on Twitter on Saturday as people called on the senator to take action against gun violence.

The hashtag also went viral in August following back-to-back mass shootings in El Paso, Texas, and Dayton, Ohio.

At least 5 dead/21 wounded in #Odessa/#Midland. 2nd mass shooting in Texas in a month. And look, it was NOT the invading hoard!



More notches for #MassacreMitch’s & @GregAbbott_TX’s belts.



That NRA taint must taste SO delicious for the @SenateGOP to continue to do nothing. pic.twitter.com/nqiGmBYcQa — (((evan shapīro))) (@eshap) August 31, 2019

A bill for universal background checks has already been passed by the House and has bipartisan support in the Senate.



It’s supported by 93% of Americans.



One man has stood in its way of getting a vote. #MassacreMitch



It’s time for him to go. pic.twitter.com/kc2M22FoRN — MatthewDicks (@MatthewDicks) September 1, 2019

Nobody gives a fuck if you were briefed by your fixer. We want gun violence addressed NOW! Order #MassacreMitch to bring Congress back and get off the fucking golf course. https://t.co/iRO0SPoHH7 — Morgan J. Freeman (@mjfree) August 31, 2019

Not one peep from #MassacreMitch since the #OdessaShooting. Texas mourns. America mourns. McConnell’s mute. Mitch McConnell’s legislative malpractice has resulted in absolute failure to move on #GunReform. Trump, McConnell, and the GOP grab their gun lobby money & run, run, run. — Stephanie Kennedy (@WordswithSteph) September 1, 2019

This article originally appeared on HuffPost.

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