Four-day mourning period begins for George H. W. Bush
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A final trip to Washington for George H. W. Bush

Four-day mourning period begins for George H. W. Bush

Members of the Secret Service place the casket in a hearse at George H. Lewis Funeral Home after a Bush family service in Houston

 (Godofredo A. Vasquez / Associated Press)
Four-day mourning period begins for George H. W. Bush

The flag-draped casket of former President George H.W. Bush is carried by a joint services military honor guard, at Ellington Field in Houston, Texas, for a departure ceremony to Washington.

 (David J Phillip / POOL)
Four-day mourning period begins for George H. W. Bush

Sully, the golden Labrador that worked as a service dog for former President George W.H. Bush, sleeps next to his coffin in Houston.

 (EVAN SISLEY)
Four-day mourning period begins for George H. W. Bush

The U.S. flag flies at half-staff in honor of former President George H.W. Bush outside the Capitol in Washington.

 (ALEX EDELMAN / AFP/Getty Images)
Four-day mourning period begins for George H. W. Bush

The catafalque is prepared to hold the casket of former President George H.W. Bush, whose body will lie in state inside the Rotunda of the U.S. Capitol in Washington.

 (Drew Angerer / Getty Images)
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