Golden balloons were dropped, and the crowd joined the president in repeating a vow to vote for "the greatest president in the history of the United States that loves us so much he can't even breathe".
JD Vance's speech was received well, and the audience chanted "48", suggesting they'd like the vice-president to become the 48th president of the United States. Is he pulling ahead of Marco Rubio as the bookies' favourite to be the Republican candidate for 2028?
Katy Balls, Washington editor and columnist at The Times and The Sunday Times
Gerard Baker, columnist at The Times and editor at large at The Wall Street Journal
Producer: Harry Kitson
Executive producer: Molly Guinness
Picture: Getty Images
Audio: Reuters