The 43rd president is concerned he may be the last Republican to win the White House.
"I'm worried that I will be the last Republican president," George W. Bush said in April, according to Politico.
He made the comment to about 1,000 people at a staff reunion in Dallas, which Politico called a "shadow convention" in its Tuesday report.
Bush's fears are shared by other Republicans who say the party's presumptive GOP nominee, Donald Trump, has pushed away Latinos with his plan for a border wall between the U.S. and Mexico. He has also called for an immigration ban against Muslims and an end to certain international trade deals.
As Politico reported:
"In interviews with more than 40 of the Republican Party's leading strategists, lawmakers, fundraisers and donors, a common thread has emerged heading into the general election: Win or lose in November (and more expect to lose than not), they fear that Trump's overheated and racialized rhetoric could irreparably poison the GOP brand among the fastest-growing demographic groups in America."
Read more of Politico's report here.