Sully accompanied Bush one last time on a flight to Washington D.C. for memorial services. "Thank you for your service, Mr. President".
Sully is named after the airline pilot Chesley "Sully" Sullenberger, who landed a passenger jet on the Hudson River in 2009, saving all 155 passengers and crew on board.
He will now work as a service dog, assisting with therapy for wounded soldiers.
Jeb Bush, sone of the 41st president and the former governor of Florida, retweeted the photo, with the simple words: "Sully has the watch".
David J. Phillip Pool AP
President Donald Trump designated Wednesday as a national day of mourning, the White House said.
It wasn't a widely-known fact until he developed a form of Parkinson's disease and relied on a wheelchair.
The former president's body is expected to leave the funeral home Monday morning and will be transported to Ellington Field where it will depart for its final trip to the nation's capital.
The Associated Press deleted Sunday an earlier tweet about the death of President George H.W. Bush after critics ripped the post as unfairly negative and biased.
Comey Agrees To Testify On Monday With Transcripts Released By Tuesday
Comey and the Republican lawmakers reached the new agreement the day before lawyers were to appear at a court hearing. While Comey says Republicans have agreed to his terms, a ruling has not yet been officially issued. "It appears Mr.