All eyes are on Coco Gauff after surviving a grueling three-set match to win her opening match at the U.S. Open. Will Reeve has the highlights. | Good Morning America

Minneapolis Mayor Jacob Frey discusses the deadly school shooting where two children, 8 and 10, were killed: "We have an obligation again to not just feel grief in this moment, which is righteous -- but we need to show action, which is essential." | Good Morning America

A special election for an Iowa state senate seat delivered a Democratic win, breaking the Republican supermajority. Democrats say it’s a sign of things to come. Jay O’Brien reports. | Good Morning America

Pres. Trump insists he has the right to fire Federal Reserve board member Lisa Cook, doubling down on his mortgage fraud accusation. Mary Bruce reports. | Good Morning America