Trump assassination attempt: What to know Monday

America is reeling.

• The attempted assassination of former President Donald Trump, 115 days before Election Day, has ushered in a dark new chapter of political violence — and redefined a campaign already laden with historic firsts, Axios' Zachary Basu writes .

News of shots fired at Trump during a Butler, Pennsylvania rally Saturday evening has dominated headlines all weekend, and that won't stop Monday.

Catch up quick: A bullet pierced Trump's ear during the shooting. Trump wrote on Truth Social Saturday that he "felt the bullet ripping through the skin."

• Two other rally attendees were injured. A former fire chief attending the rally, Corey Comperatore, died protecting his family .
• The FBI identified the alleged shooter , who Secret Service agents killed after he opened fire, as 20-year-old Thomas Matthew Crooks from Bethel, Pennsylvania. A motive isn't clear.

The latest: In North Carolina and across the country, elected officials across the political spectrum disavowed the violence and raised fears that more could be coming.

• See what NC officials said in the aftermath. ( WRAL )

Zoom out: This will be a defining moment for the presidential election, especially when just days ago the conversation focused almost entirely on Democratic concerns that President Biden didn't have the stamina to win.

• That narrative has now shifted drastically, and both Trump and Biden will face pressure to dial down the temperature ahead of an election that has transformed the country into a tinderbox.

What's next: The 2024 RNC begins today hundreds of miles away in Milwaukee, as the country faces a new level of challenges and fears.

• Lt. Gov. and Republican nominee for governor Mark Robinson, former NCGOP chair — and now RNC chair — Michael Whatley, Congressman Richard Hudson, a group of UNC fraternity brothers are among those set to speak at the convention.

Meanwhile , several members of Congress told Axios they plan to cancel events and close or restrict their campaign and congressional offices in response to the shooting.

• And two House members said yesterday they plan to file a bill that would enhance security protection for presidential candidates .

The bottom line: "Everything in America has turned political," Axios' Jim VandeHei and Mike Allen write . "Everything political turned visceral. And everything visceral turned into the possibility of unspeakable violence like this."

Go deeper: Fear, anger, cheers: What I saw at the Trump rally shooting