"My opinion of him went up seeing how he conducted himself as a statesman afterwards".
As a specially-trained service dog, Sully was able to assist Bush, who was suffering from Parkinson's in his later years, by opening doors and being able to get help, should the former president have needed it.
President Bush will lie in repose in the U.S. Capitol Rotunda until Wednesday morning, when his body will be moved to National Cathedral for a state funeral. The Trumps are attending the funeral but are not expected to speak.
The Trumps visited Mr Bush's coffin on Monday evening. Both served in World War II.
"I'm just here to pay my respects", said Jane Hernandez, a retired physician in the heavily Democratic city and suburbs. They waited in line nonetheless. "The Iraq war, the falling of the Berlin Wall, he wasn't (saying) that's all about me", Theresa Murphy, 64, a retired NY high school history teacher, said on Monday. "President Bush was a great friend and ally of the United Kingdom. And anybody who does that job deserves some respect". "Honestly I just liked him", he said. "He seemed like a honest and decent man and you couldn't argue with his qualifications".
On Thursday, that same 4,300-horsepower machine will carry Bush's casket, along with relatives and close friends, for around 113 kilometres.
The US president has clashed in the past with Mr Bush, America's 41st president who died aged 94 on Friday, and his son George W Bush, the 43rd president who did not vote for Mr Trump in the 2016 election. And as he was steadied, Dole raised his left arm and saluted.
Mr Trump's relationship with the Bush family has been tense.
The Episcopal service will include four eulogies, from Bush's son, the former president, former Canadian Prime Minister Brian Mulroney, former Senator Alan Simpson and Pulitzer Prize-winning author Evan Meacham, who wrote a biography of Bush.
Cannon fire roared again outside the Capitol as the sun sank and the younger Mr Bush stood with his hand over his heart, watching the casket's procession up the steps.
National days of mourning don't happen often, so you may be confused about what's open and what's not.
George W. Bush greeted Melania Trump with a kiss outside Blair House.