News Wrap: Zelenskiy denies Trump tried to blackmail him

In our news wrap Thursday, Ukrainian President Volodymyr Zelenskiy denied President Trump sought to blackmail him over military aid to Ukraine. Zelenskiy also vowed that his country would investigate whether Ukraine interfered in the 2016 U.S. presidential election. Meanwhile, Apple has removed an app that helped Hong Kong protesters track police movements amid a backlash from Chinese state media.