Former President George H.W. Bush could go home from the hospital as early as Thursday, according to his son, Neil.
'Big morale boost from a high level delegation, ' the caption read.
"President Bush is in very good spirits and is being held for further observation while he regains his strength", he said in a statement.
'No father has ever been more blessed, or prouder'.
Former President George HW Bush (left) got a hospital visit from another former president - his son. Physicians say the illness was treated and has been resolved.
George Herbert Walker Bush, born June 12, 1924, in Milton, Massachusetts, also served as a congressman, Central Intelligence Agency director and Ronald Reagan's vice president.
His hospitalization comes a few months after he and wife Barbara were admitted to the hospital back in January, just before President Trump's inauguration, which Bush had already declined to attend due to health concerns.
He lost his 1992 re-election bid to Democrat Bill Clinton.