“Rubio’s resume does not reflect someone prepared to confront serious and dangerous issues that our country faces as president,” Gonzales said.

Gonzales, who was the nation’s first Latino attorney general in the George W. Bush administration and remains one of the highest-ranking Latinos in U.S. history, questioned the staying power of the Florida senator’s popularity with Latino voters.

Rubio might generate interest among Latinos “for the first 12 hours if selected for the number two spot, but that won’t last,” Gonzales said.