CNNPaul Ryan: 'I'm just not ready' to back Donald TrumpCNNWashington (CNN) House Speaker Paul Ryan said Thursday he cannot yet support presumptive Republican nominee Donald Trump's presidential campaign. "I'm just not ready to do that at this point. I'm not there right now," the Wisconsin Republican told ...The Latest: RNC chair says Trump, Ryan will come togetherWashington PostPaul Ryan Says He Cannot Support Donald Trump for NowNew York TimesPaul Ryan says he's not ready to support TrumpPoliticoWall Street Journal -U.S.