(AP) — The first numbers from the 2020 census are out and show that America’s population growth has declined to its slowest rate since the Great Depression — a total now of just under 331.5 million. At the same time, the nation’s political center of gravity has kept shifting farther to the Republican-led South and West. Texas, Florida and other Sunbelt states are gaining congressional seats as chillier climes like New York and Ohio lose them. One historic Western exception: California is losing a seat for the first time. That’s a result of slowed migration to the nation’s most populous state, which was once a symbol of the country’s expansive frontier.