His vice president has crossed party lines to emphatically endorse Vice President Kamala Harris for president, but George Bush’s office said Saturday that he’ll sit this one out. When NBC News asked if the Republican former president will be making a public endorsement in the race, the answer came back a no. “President Bush retired from presidential politics years ago,” the office said. Bush told People in 2021 that he didn’t vote for Donald Trump last time, either, saying he wrote in the name of Condoleezza Rice, who was secretary of state during his presidency. Other campaign developments to…