Trump shooting updates: Shooter flew drone 200 yards from site hours before shooting

In his first interview since Donald Trump was shot at a rally Saturday, Eric Trump was asked if U.S. Secret Service Director Kimberly Cheatle should stay in her position.

"The head [of the Secret Service]? No, they should have had more resources," Trump said.

"Listen, at the end of the day, we can't get past the fact that somebody should not have gotten on a roof 130 yards away from the president of the United States -- you know, ex-president of the United States, and soon to be president of the United States, with a high power rifle; that's inexcusable," Trump said.

Speaking with ABC News Chief Justice Correspondent Pierre Thomas, Cheatle called the shooting "unacceptable," saying, "it's something that shouldn't happen again."

In the days since the attack, Cheatle and the Secret Service have faced heightening scrutiny for failing to prevent the incident from happening, and even calls from some to resign.

Cheatle said she would not resign from her role.

President Joe Biden weighed in on if the assassination attempt on former President Donald Trump will impact the trajectory of the 2024 election.

In an interview with NBC's Lester Holt, Biden was asked if he believes that this shooting has "changed the trajectory of this race," to which Biden said, "I don't know. And you don't know either."

"I've thought less about the trajectory of the race than two things. One, what his [Trump] health is. That was secure. Number one. And number two, what happens from here on in terms of the kind of coverage that the president and vice president and former president and new vice president get," Biden said.

The president was also asked about his phone call with Trump after this past weekend's shooting, which he described as a "very cordial" conversation.

"I told him how concerned I was and wanted to make sure I knew how he was actually doing. He sounded good. He said he was fine. And he thanked me for calling him. I told him he was literally in the prayers of Jill and me and I hoped his whole family was weathering this," Biden said.

-ABC News’ Justin Gomez

In her first network interview since the assassination attempt on former President Donald Trump, U.S. Secret Service Director Kimberly Cheatle offered insight into the logistics surrounding the deadly shooting Saturday.

"It was unacceptable," she said in an interview Monday with ABC News Chief Justice Correspondent Pierre Thomas. "And it's something that shouldn't happen again."

Cheatle said that local authorities were tasked with securing the building where the alleged shooter fired the shots before being taken out by a Secret Service sniper, and confirmed that local police were present inside the building while the shooter was on the roof.

"In this particular instance, we did share support for that particular site and that the Secret Service was responsible for the inner perimeter," Cheatle said. "And then we sought assistance from our local counterparts for the outer perimeter. There was local police in that building -- there was local police in the area that were responsible for the outer perimeter of the building."

She is expected to testify before the GOP-led House Oversight Committee next Monday, July 22.

-ABC News' Julia Reinstein

Former President Donald Trump shared an update with ABC News' Jonathan Karl on how his right ear is recovering and said the assassination attempt at his campaign rally Saturday had "impact."

When asked if the close call to the bullet striking his head "changed him," Trump said, "I don’t like to think about that, but, yes, I think has an impact."

Trump said his ear is doing fine and that he hopes the bandage will be off by the time he speaks on Thursday at the Republican National Convention.