Bill Gates says $200 billion spent over the next 20 years will go toward causes to help save and improve lives around the world. He also criticized the Trump administration's cuts to aid, saying they could lead to more child deaths.

Bill Gates pledged on Thursday to give away almost his entire personal wealth in the next two decades and said the world's poorest would receive some $200 billion via his foundation at a time when governments worldwide are slashing international aid.

Bill Gates is pledging 99% of his remaining fortune to the Gates Foundation, which will spend it all within 20 years