The two living Republican presidents have made clear they will not support Donald Trump as the property mogul seeks to overcome deep dissent within the party’s ranks ahead of a likely presidential face-off against Hillary Clinton.
The former presidents’ detached stance highlights Mr Trump’s challenge as he seeks to consolidate support in the party ahead of the looming White House battle against Mrs Clinton, who has all but sewn up the Democratic nomination.
The 91-year-old George Bush senior has endorsed every Republican nominee for the past five decades but a spokesman said he was “retired from politics”, the Washington Post reported.