Pennsylvania Avenue hosts the inaugural parade (28 images)

President Donald Trump and First Lady Melania Trump walk during the Inaugural Parade on January 20, 2017 in Washington, DC. In today's inauguration ceremony Donald J. Trump becomes the 45th president of the United States. Pool photo/UPI

President Donald Trump and First Lady Melania Trump walk in their inaugural parade after being sworn-in as the 45th President in Washington, D.C. on January 20, 2017. Photo by Kevin Dietsch/UPI

President Donald J. Trump and Vice President Mike Pence wave and clap from the viewing area during the Trump presidential inaugural parade on Pennsylvania Avenue January 20, 2017 in Washington, D.C. Trump became the 45th President of the United States. Photo by David Tulis/UPI

President Donald Trump and First Lady Melania walk during the inaugural parade in Washington, DC on January 20, 2017. Trump became the 45th President of the United States. Pool photo by Mike TheilerUPI