The Secret Service issued a statement on Sunday morning saying it was "untrue" that a member of former President Donald Trump's team had requested more Secret Service protection.

"There's an untrue assertion that a member of the former President's team requested additional security resources & that those were rebuffed. This is absolutely false. In fact, we added protective resources & technology & capabilities as part of the increased campaign travel" protocols, the Secret Service said in a statement. 

Trump has had a Secret Service detail since 2016, and all former presidents and their spouses have Secret Service protection for the remainder of their lives, unless that person declines. Trump was given additional protection in June as part of the protocol for the process for a presumptive presidential nominee. Those additional protections include additional manpower, counter sniper, drones and robotic dogs. 

Trump campaign senior advisers Susie Wiles and Chris LaCivita instructed campaign staff in a memo to stay away from offices in Washington, D.C. and Palm Beach, Florida, after Saturday night's assassination attempt on former President Donald Trump while the locations are assessed and security enhanced. 

"Our highest priority is to keep all of you on this staff safe," the advisers said in the memo, which noted that the RNC Convention in Milwaukee will continue as planned.

"We also urge you to recognize the political polarization in this heated election," the managers said, instructing staff not to comment publicly on the incident. "We condemn all forms of violence, and will not tolerate dangerous rhetoric on social media."

House Speaker Mike Johnson said Sunday on NBC's Today that he spoke with Homeland Security Secretary Alejandro Mayorkas last night, but meanwhile "everyone needs to turn the rhetoric down."

"We can have heated political discourse and debates but it shouldn't be personal and we shouldn't be targeting people," Johnson said. "I mean, look, President Biden himself said in recent days, it's time to put the bullseye on Trump. I mean, I know that he didn't mean what is being implied there, but that kind of language on either side should be called out and we have to make clear that this is part of our system. We can have vigorous debate, but it needs to end there."

Johnson has called for the House to conduct an investigation into the shooting. 

Law enforcement officials on Sunday swarmed the home believed to be connected with the shooter in the assassination attempt of former President Donald Trump.

Public records show the home is that of 20-year-old Thomas Crooks, who federal law enforcement officials identified as the shooter who opened fire at the rally in Butler on Saturday evening.

One neighbor, who lives only a few homes down the road from the gunman, told CBS Pittsburgh that police evacuated her home in the middle of the night. She was told noon on Sunday was the earliest she could be allowed back into her home.

"They asked us to leave our house. They told us it was a state of emergency, no warning, just a knock on the door in the middle of the night," Kelly Little said. "They told us we could come back in a couple of hours, likely." 

Read more on CBS Pittsburgh.

 Former President Donald Trump posted on Truth Social early Sunday that Americans need to "remain resilient in our Faith and Defiant in the face of Wickedness," hours after a gunman opened fire at his Pennsylvania rally, leaving him injured. 

"In this moment, it is more important than ever that we stand United, and show our True Character as Americans, remaining Strong and Determined, and not allowing Evil to Win," Trump wrote. "I truly love our Country, and love you all, and look forward to speaking to our Great Nation this week from Wisconsin."

Trump is set to speak Thursday at the Republican National Convention in Milwaukee.