Jeb Bush's daughter Noelle does reading at George H.W. Bush's funeral

Shawn Thew/Pool via REUTERS The casket of former US President George H.W. Bush sits in the hearse on the East Front of the US Capitol in Washington, DC, USA, 05 December 2018.

And he struggled with his emotions as he recounted Bush, a former fighter pilot, showing him a plaque mounted at the family compound in Kennebunkport, Maine, inscribed with the letters CAVU: "ceiling and visibility unlimited", a description of flawless flying conditions.

It was his first North Atlantic Treaty Organisation meeting in 1989, and as a parade of world leaders took turns at the podium, newly elected US president George H.W. Bush was taking a lot of notes.

Roberts joined ABC News' Chief White House Correspondent Jonathan Karl and Political Director Rick Klein to discuss Bush's presidency.

The family and friends of the late president were in attendance Thursday morning to mourn.

"He was a man of such great humility", said Alan Simpson, former Republican senator from Wyoming. George W. Bush, who as president was sometimes prone to an occasional cry, appeared to steel himself with deep breaths throughout the service before letting out a sob.

"Through our tears, let us know the blessings of knowing and loving you, a great and noble man, the best father a son or daughter could ask", Bush said.

Bush gives a eulogy for his grandfather.

The train will take his casket, family and closest friends about 70 miles to College Station, where Bush will be buried later Thursday during a private service at his presidential library.

Last salute for George H.W. Bush at state funeral in Washington D.C. In their row together, Trump and former Presidents Barack Obama, Jimmy Carter and Bill Clinton stood with their spouses and all placed their hands over their hearts.

If the Bushes are everything wrong with democracy, at least they didn't threaten it in the ways that Trump does.

MacCallum and Watters: Did Hillary Snub Pres. Trump at George H.W. Bush's Funeral?

Trump closed the federal government on Wednesday to mark a day of mourning for Bush, and several United States financial exchanges were closed.

"I don't think it's respect for the human being if you talk smack about them, if you say the nastiest things about them, if you treat them as subhuman, and then you want to show up at their funeral".

Bush's service dog, Sully, was taken to the viewing, too - his main service these last months since Barbara Bush's death in April being to rest his head on her husband's lap. Former Canadian prime minister Brian Mulroney and biographer Jon Meacham will also deliver eulogies for the 41st president.

None of that means, however, that Jeb Bush and President Trump's differences have been resolved.

  • Gwendolyn Kim