Senate Republican Conference Chairman John Barrasso, R-Wyo., led a majority of the Senate in co-sponsoring a resolution to officially condemn the attempted assassination of former President Trump at a rally in Pennsylvania. 

The resolution passed by unanimous consent in the upper chamber on Thursday, officially condemning the attempt on Trump’s life, honoring “the victims who were killed and injured at the rally” and calling “for unity and civility in the United States.”

The condemnation amassed 64 co-sponsors before its passage, notably including both Democratic Pennsylvania Sens. Bob Casey and John Fetterman, whose constituents were victims.

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“On July 13, our nation witnessed a horrifying assassination attempt on President Trump. Our country was inches away from a catastrophic event that would have changed the course of our history,” Barrasso said in a statement to Fox News Digital. “Today, the United States Senate came together in condemning this horrifying act against a former president and current Republican candidate for president.

“We also honor the life of a brave American, Corey Comperatore, who did not hesitate to give his life protecting his family. We honor David Dutch and James Copenhaver, who were both critically injured. Americans deserve to attend political events and exercise their rights without fear for their lives. Congress is determined to find answers and ensure this never happens again,” he added. 

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Majorities of both the Democratic caucus and Republican conference were among the co-sponsors of Barrasso’s resolution. 

It’s also common for legislation, resolutions, and letters to be supported by more lawmakers than those who sign on. Scheduling conflicts and timing can play a role in senators’ ability to join as a co-sponsor or signatory. 

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A graphic representation of the position of the sniper team in relation to the would-be assassin at the former President Trump rally in Butler, Pennsylvania, on July 13, 2024. (Fox News)

The assassination attempt against Trump took place during his July 13 outdoor rally in Butler, Pennsylvania. Trump was shot in the ear during the event before being rushed off-stage by the Secret Service with blood on his face. Rallygoer Corey Comperatore was killed by the gunman, while James “Jim” Copenhaver and David “Jake” Dutch were both injured and hospitalized. 

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A Secret Service member and members of the crowd are seen at republican presidential candidate former President Trump’s rally on July 13, 2024 in Butler, Pennsylvania. (Anna Moneymaker/Getty Images)

In the wake of the attack against Trump, lawmakers in Congress have committed to investigating the decisions that left the former president and rally attendees vulnerable to such a shooting. 

Secret Service Director Kimberly Cheatle resigned last week following growing bipartisan calls for her to do so. 

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Then-Secret Service Director Kimberly Cheatle testifies before the House Oversight and Accountability Committee about the attempted assassination of former President Trump at a campaign event in Pennsylvania. ( AP Photo/Rod Lamkey, Jr.)

New texts and records obtained by the office of Sen. Chuck Grassley, R-Iowa, have pieced together the timeline of the attack and provided insight into how the shooter was able to evade concern or suspicion and ultimately attack. A detailed timeline included in a Beaver County emergency services after-action report showed that local police weren’t sure where shooter Thomas Crooks had gone just minutes before he opened fire from atop a nearby building. 

Mitch McConnell and Chuck Schumer (Getty Images)