CNN — House Homeland Security Chairman Mark Green barred GOP Rep. Marjorie Taylor Greene from speaking further in a hearing after she called Department of Homeland Security Secretary Alejandro Mayorkas a “liar” – a stunning example of how Greene’s extreme rhetoric led even members of her own party to shut her down, creating tensions inside the House GOP. Greene, a Georgia Republican, began her time during Wednesday’s hearing by going after Democratic Rep. Eric Swalwell of California, who had shown an Instagram photo of her calling to defund the FBI. Greene brought up an incident from several years ago, when...