United States' Simone Biles celebrates on the podium after winning vault gold during the artistic gymnastics women's apparatus final at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Sunday, Aug. 14, 2016. (AP Photo/Dmitri Lovetsky)

More gold for Biles

Simone Biles has become the first American female gymnast to win three gold medals in one Olympics.

(AP Photo/Rebecca Blackwell)

U.S. adds to medal count

Michael Phelps wrapped up his 23rd career gold medal by putting the United States ahead.