1 / 25President Donald Trump looks up during the military flyovers at the Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. The Washington Monument is in the background. (AP Photo/Carolyn Kaster)
2 / 25President Donald Trump speaks in the rain behind glass during an Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Carolyn Kaster)
3 / 25Fireworks light the sky near the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Alex Brandon)
4 / 25Fireworks explode over the National Mall during the Independence Day celebrations in Washington, Thursday, July 4, 2019, after President Donald Trump's "Salute to America'"remarks at the Lincoln Memorial. (AP Photo/Jose Luis Magana)
5 / 25Fireworks light the sky over Lincoln Memorial, Washington Monument and US Capitol, at the National Mall, during the Independence Day celebrations in Washington on Thursday, July 4, 2019, after President Donald Trump's 'Salute to America' remarks at Lincoln Memorial. (AP Photo/Jose Luis Magana)
6 / 25People watch fireworks on the National Mall in Washington during Independence Day celebrations, Thursday, July 4, 2019. (AP Photo/Patrick Semansky)
7 / 25The US Navy Blue Angels flight demonstration team performs a flyover above the Lincoln Memorial during Independence Day celebrations, Thursday, July 4, 2019, on the National Mall in Washington. (AP Photo/Patrick Semansky)
8 / 25People on the east side of Manhattan watch a fireworks display, part of Independence Day festivities, Thursday, July 4, 2019, in New York. (AP Photo/Jeenah Moon)
9 / 25The Lincoln Memorial is enveloped in smoke as fireworks burst along the Potomac River in celebration of Independence Day in Washington, Thursday, July 4, 2019. (AP Photo/J. David Ake)
10 / 25The EQT Flashes of Freedom Fireworks go off over the confluence of three rivers, Thursday, July 4, 2019, as seen from West End-Elliott Overlook Park in West End in Pittsburgh. (Michael M. Santiago/Pittsburgh Post-Gazette via AP)
11 / 25The US Marine Corps Silent Drill Platoon arrives to perform during an Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Alex Brandon)
12 / 25Audience members celebrate during an Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Alex Brandon)
13 / 25President Donald Trump and first lady Melania Trump gather with others on stage as the Blue Angels, the United States Navy's flight demonstration squadron, flies overhead during an Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Carolyn Kaster)
14 / 25US Navy flight demonstration team, The Blue Angels, fly over Washington during an Independence Day celebration attended by President Donald Trump at the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Jose Luis Magana)
15 / 25President Donald Trump and first lady Melania Trump arrive for an Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Carolyn Kaster)
16 / 25President Donald Trump, standing with first lady Melania Trump, Vice President Mike Pence, and acting Defense Secretary Mark Esper, and others, watch as the US Navy Blue Angels flyover during an Independence Day celebration in front of the Lincoln Memorial in Washington, Thursday, July 4, 2019. (AP Photo/Susan Walsh, Pool)
17 / 25U.S. Army planes fly over Washington during an Independence Day celebration attended by President Donald Trump at the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Jose Luis Magana)
18 / 25President Donald Trump, accompanied by Joint Chiefs Chairman Gen. Joseph Dunford left, and Acting Defense Secretary Mark Esper, right, watch as aircraft fly overhead during an Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Andrew Harnik)
19 / 25The Washington Monument is visible as the US Navy Blue Angels flyover at the conclusion of President Donald Trump's Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Andrew Harnik)
20 / 25President Donald Trump gives first lady Melania Trump a kiss as he arrives to speak at an Independence Day celebration in front of the Lincoln Memorial in Washington, Thursday, July 4, 2019. (AP Photo/Susan Walsh, Pool)
21 / 25The US Navy Blue Angels flyover as President Donald Trump speaks during an Independence Day celebration in front of the Lincoln Memorial in Washington, Thursday, July 4, 2019. (AP Photo/Susan Walsh, Pool)
22 / 25President Donald Trump and first lady Melania Trump arrive for an Independence Day celebration in front of the Lincoln Memorial, Thursday, July 4, 2019, in Washington. (AP Photo/Carolyn Kaster)
23 / 25President Donald Trump, standing with first lady Melania Trump and others, waves to the crowd following his speech at an Independence Day celebration in front of the Lincoln Memorial in Washington, Thursday, July 4, 2019. (AP Photo/Susan Walsh, Pool)
24 / 25The Lincoln Memorial is seen above the audience gathered for an Independence Day celebration, Thursday, July 4, 2019, in Washington, with President Donald Trump. (AP Photo/Carolyn Kaster)
25 / 25The Blue Angels, the United States Navy's flight demonstration squadron, flies over the Lincoln Memorial during an Independence Day celebration with President Donald Trump, Thursday, July 4, 2019, in Washington. (AP Photo/Carolyn Kaster)
