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 will lead to more child deaths.

Microsoft co-founder Bill Gates will dramatically speed up his plans to give away most of his wealth, saying he will reduce his estimated $108 billion net worth by 99 percent over 20 years and prepare his eponymous foundation to stop operating by the end of 2045.