Jim Geraghty of National Review and Greg Corombos of Radio America react to the U.S. Supreme Court allowing President Trump's travel ban on six nations to go into effect while the courts sort out the legal challenges.  Regardless of whether the ban is a good idea, U.S. law clearly gives the president the authority to do this.  They also shudder as the Republican National Committee follows President Trump's lead and jumps back in to help Alabama U.S. Senate candidate Roy Moore.  And they shake their heads as Michigan Rep. John Conyers says he is "retiring" from Congress and endorses his son in the race to succeed him.