JOINT BASE ANDREWS, MARYLAND - JUNE 20: U.S. Vice President J.D. Vance speaks to the media on June 20, 2026 at Joint Base Andrews, Maryland. Vance is heading to Switzerland for negotiations with Iran to end the war that have been delayed by Israeli strikes in Lebanon and over the opening the Strait of Hormuz. (Photo by Elizabeth Frantz - Pool/Getty Images)

JOINT BASE ANDREWS, MARYLAND - JUNE 20: U.S. Vice President J.D. Vance aboard Marine Two arrives on June 20, 2026 in Joint Base Andrews, Maryland. Vance is heading to Switzerland for negotiations with Iran to end the war that have been delayed by Israeli strikes in Lebanon and over the opening the Strait of Hormuz. (Photo by Elizabeth Frantz - Pool/Getty Images)

JOINT BASE ANDREWS, MARYLAND - JUNE 20: U.S. Vice President J.D. Vance disembarks Marine Two as he arrives on June 20, 2026 at Joint Base Andrews, Maryland. Vance is heading to Switzerland for negotiations with Iran to end the war that have been delayed by Israeli strikes in Lebanon and over the opening the Strait of Hormuz. (Photo by Elizabeth Frantz - Pool/Getty Images)

JOINT BASE ANDREWS, MARYLAND - JUNE 20: U.S. Vice President J.D. Vance disembarks Marine Two as he arrives on June 20, 2026 at Joint Base Andrews, Maryland. Vance is heading to Switzerland for negotiations with Iran to end the war that have been delayed by Israeli strikes in Lebanon and over the opening the Strait of Hormuz. (Photo by Elizabeth Frantz - Pool/Getty Images)

JOINT BASE ANDREWS, MARYLAND - JUNE 20: U.S. Vice President J.D. Vance speaks to the media on June 20, 2026 at Joint Base Andrews, Maryland. Vance is heading to Switzerland for negotiations with Iran to end the war that have been delayed by Israeli strikes in Lebanon and over the opening the Strait of Hormuz. (Photo by Elizabeth Frantz - Pool/Getty Images)

JOINT BASE ANDREWS, MARYLAND - JUNE 20: U.S. Vice President J.D. Vance disembarks Marine Two as he arrives on June 20, 2026 at Joint Base Andrews, Maryland. Vance is heading to Switzerland for negotiations with Iran to end the war that have been delayed by Israeli strikes in Lebanon and over the opening the Strait of Hormuz. (Photo by Elizabeth Frantz - Pool/Getty Images)

JOINT BASE ANDREWS, MARYLAND - JUNE 20: U.S. Vice President J.D. Vance aboard Marine Two arrives on June 20, 2026 in Joint Base Andrews, Maryland. Vance is heading to Switzerland for negotiations with Iran to end the war that have been delayed by Israeli strikes in Lebanon and over the opening the Strait of Hormuz. (Photo by Elizabeth Frantz - Pool/Getty Images)

WASHINGTON, DC - JUNE 20: Visitors walk past an advertisement for the Freedom 250 Grand Prix of Washington near the National Mall on June 20, 2026 in Washington, DC. An executive order signed by President Donald Trump in January designated a White House Task Force on Celebrating America's 250th Birthday to designate a race route through the National Mall on Aug. 21-23, 2026. (Photo by Anna Rose Layden/Getty Images)