For the special occasion, Sully donned an American flag service vest, emblazoned with the seal of the President of the United States.
As the nation continues to mourn former President George H.W. Bush, a number of federal and state offices will be closed Wednesday.
According to USA TODAY, Trump on Saturday proclaimed a day of mourning.
Friends and family will celebrate his life during a memorial service at the National Cathedral in Washington. This website is not intended for users located within the European Economic Area. Bush is survived by five children, including former president George Bush and former Florida governor and presidential candidate Jeb Bush, and 17 grandchildren.
Jennifer Jacobs, White House reporter for Bloomberg News, posted a photo of the readying motorcade and the news that Trump didn't want to walk.
Bush went on to win the presidency in 2000, serving eight years in the White House. Dole served as Senate Majority Leader during the Bush administration, and they worked together on many different issues.
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Of course, Legally Blonde actress Jennifer Coolidge also shows up, reprising her role as the adorably ditsy Paulette Bonafonté . In the song, she sings "Even nearly got married / To Pete I'm so thankful".
Sully is understandably upset by the death of his longtime friend, but he is glad to have served the 41st president for almost six months.
He will be buried alongside his wife Barbara Bush who died seven months ago, and Robin Bush, the daughter the couple lost to leukemia in 1953 at age 3.
After services in Washington, there will be another funeral in Houston on Thursday, followed by burial at the Bush Presidential Library in College Station, Texas.
George H.W. Bush will also be honored by the Dole Institute of Politics in Manhattan, Kansas. She told Xinhua that she respected Bush immensely.
Bush is the 11th president to lie in state at the Capitol and among 31 people to have been given the honor.
Bush was elected US president in 1988 as the successor to Ronald Reagan. Bush enrolled at Yale University after military service, becoming a scholar-athlete and captaining the baseball team to two College World Series before graduating Phi Beta Kappa after just 2½ years.