HuffPost's Lydia Polgreen, former US Attorney Joyce Vance, Real Clear Politics' A.B. Stoddard, and Rev. Al Sharpton on House Oversight Committee Chairman Elijah Cummings' powerful words for Trump's acting DHS chief about the migrant crisis. 

Former US Attorney Joyce Vance, former Acting US Solicitor General Neal Katyal, Real Clear Politics' A.B. Stoddard, and Rev. Al Sharpton on how the Democrats are preparing for Robert Mueller's testimony on Capitol Hill next week. 

NYT's Peter Baker, HuffPost's Lydia Polgreen, former US Attorney Joyce Vance, Real Clear Politics' A.B. Stoddard, and Rev. Al Sharpton on the president walking back his disavowal of the racist chants at his rally in North Carolina. 

HuffPost's Lydia Polgreen, former US Attorney Joyce Vance, Real Clear Politics' A.B. Stoddard, and Rev. Al Sharpton on what to expect from the second Democratic debate now that the line-ups for each night are set.