6 PM ET: GOP at DNC, Israeli hostage deaths investigation, Boeing's latest setback & more

Notable Republicans are stepping up to speak at the Democratic National Convention, stirring political surprises. An investigation is underway regarding the Israeli military's involvement in the deaths of hostages retrieved from Gaza. Boeing faces another setback with its 777X aircraft, pushing back its launch timeline. Meanwhile, Europe is easing tariffs on Teslas from China. Lastly, new research reveals troubling links between popular medications and the risks of depression and suicide.