RIO DE JANEIRO (AP) — It's gold again for U.S. swimmer Michael Phelps. Phelps earned his 21st career gold medal Tuesday night after swimming the anchor leg on the 4x200-meter relay at the Summer Olympics in Rio de Janeiro. Number 20 came earlier in the evening after Phelps took the 200-meter butterfly. Nineteen-year-old Katie Ledecky took gold for winning the 200-meter freestyle. And the U.S. women's gymnastics team also captured the gold.