(Associated Press) --Already the longest-lived of the 45 men to serve as U.S. president, Jimmy Carter is about to reach the century mark. Carter remains under home hospice care and will turn 100 on Tuesday. Carter has seen the U.S. population nearly triple. The U.S. has about 330 million residents. There were about 114 million in 1924. And for all the shifts in U.S. politics, some things stay the same. Or at least come back around. Carter was born in an era of isolationism, protectionism and white Christian nationalism. All three of those elements are prominent features of the right in Donald Trump's Republican Party.