Former US president George W. Bush, Laura Bush and other family members watch as the casket of George H.W. Bush is carried by a military honor guard at Andrews Air Force Base in Maryland, following his state funeral. (Photo: VCG)

The Wednesday’s funeral service for former President George H.W. Bush serves as a rare reunion of the remaining members of the presidents club, but the front-row banter among Barack Obama, Bill Clinton and Jimmy Carter and their spouses came to an uneasy end when President Donald Trump and wife Melania arrived. (Photo: AP)

Tens of thousands pay their last respects to former US president George H. W. Bush, who steered the nation through turbulent times including the end of the Cold War. (Photo: VCG)

Former President George W. Bush chokes up several times as he delivered the eulogy at his father's funeral. In his eulogy, George W. Bush said his father had taught him that "public service is noble and necessary". (Photo: VCG)

George W. Bush pats his father's coffin gently. (Photo: VCG)

George H. W. Bush’s service dog Sally lies down in front of the coffin. (Photo: VCG)