On Monday, George H.W. Bush's faithful service dog Sully made a final journey back to the U.S. capital with the late president.
A service was held in the rotunda after Mr Bush's coffin arrived on Monday afternoon, with members of the military serving as pallbearers.
Bush's casket is set to arrive in Washington on Monday afternoon aboard the USA military airplane that's more commonly recognized as Air Force One. His eldest son, former President George W. Bush, and others from the family traveled on the flight from Houston.
Solemn preparations were underway Sunday for America's national farewell to George H.W. Bush, whose casket is to be flown from Texas to Washington aboard a presidential aircraft to lie in state at the start of a days-long state homage.
Mr Bush, who served as the 41st United States president between 1989 and 1993, died late on Friday in Texas at the age of 94. "President Trump is scheduled to speak with President George W. Bush this morning and offer his condolences on behalf of himself, the first lady, and the entire country".
Sully's service didn't end with the death of her master.
The casket will then be transported to the cathedral for the funeral service - the fourth there of a former president.
First lady Melania Trump, who represented the White House at former first lady Barbara Bush's funeral in April, was struck by the Bush family's graciousness toward her, one official told The Post.
Liberals chortled. But four years later, the scion's own son-George Walker Bush, or simply W. -defeated that same woman's bid for re-election.
Bush's passing has led to an outpouring of remembrances for the humble and gentlemanly statesman, whose life and service was seen to stand in direct contrast to the vitriol and partisanship that has enveloped elected politics in recent years.
Shortly before leaving the service, he married his 19-year-old sweetheart, Barbara Pierce, and forged the longest presidential marriage in USA history.
The account - with 123,000 followers - has playfully chronicled Sully's time with Bush at Walker's Point, location of the family compound in Kennebunkport, Maine. The two men struck up a close friendship.
"Who would have thought that I would be working with Bill Clinton of all people?" he joked in 2005.