Chants of "we love Trump" could be heard as he entered the RNC.
The first day of the Republican National Convention has wrapped up in Milwaukee -- marked with an appearance by former President Donald Trump just two days he was wounded in an assassination attempt at a Pennsylvania rally on Saturday evening.
Despite the shooting, the gathering of more than 50,000 attendees, including an expected 2,400 Republican delegates, is slated to maintain its original programming as a time to bring the party together -- but now newly energized by Trump's amazing survival and raised-fist show of defiance.
One of the most anticipated moments of Trump's campaign happened Monday when Trump named 39-year-old Ohio Sen. J.D. Vance as his running mate.
Trump has officially cleared the numerical threshold at which he has locked in the nomination, with a pause in the roll call for celebration.
Florida, his adoptive home state, put him over the edge as his son, Eric Trump, announced the delegates.
-ABC News' Tommy Barone
Donald Trump Jr. played a key role in his father picking Ohio Sen. J.D. Vance as his running mate.
Sources tell ABC News the former president's son "led a strong push" for him behind the scenes and that Trump made his decision in the last few hours.
Trump Jr. told ABC's Rachel Scott on the RNC convention floor he was "incredibly excited."
"J.D's become a really good friend … his story is an incredible one, the American dream."
"I know the man, I know the character," Trump Jr. said of his friend, J.D. Vance.
-ABC's John Santucci and Rachel Scott
The roll call vote to select Trump as the nominee is in progress, after the former president was formally nominated by Iowa GOP chair Jeff Kaufman and Nevada GOP Chair Michael McDonald.
"We want to remind all our delegates, alternates and guests that maintaining order during the roll call is extremely important," House Speaker Mike Johnson said.
In his speech, Kaufman said that over the next four days, they will hear about Trump's "broad and inspiring vision for our country."
"This is not a program just for Republicans, but one for all Americans," he said.
In his speech, McDonald played up Trump's support for eliminating taxes on tips -- a policy that plays well in the service-industry-dependent swing state of Nevada.
"In Nevada, a state that is resilient on service industry. President Trump has proposed to eliminate taxes on tips on day one," McDonald said. "Unlike the Biden-Harris administration and the Democrats that increased taxes on tips."
As Iowa cast its votes, Iowa GOP chair Kaufman gave a shoutout to basketball star Caitlin Clark, while Sen. Mike Lee of Utah shouted out JD Vance -- Trump's just-revealed VP pick -- as he announced the state's delegates for Trump.
-ABC News' Oren Oppenheim
Trump announced Ohio Sen. J.D. Vance will be his running mate, writing on Truth Social that the Ohio Republican is "the person best suited to assume the position of Vice President of the United States."
The decision caps off months of speculation and sees Trump elevate a 39-year-old first-term senator whose roughly year and a half tenure in the Senate has seen him emerge as a staunch ideological ally of the former president.
