A look at the week's regional news stories with the reporters, political commentators, and editors who covered them. This hour: Maryland Congressman Elijah Cummings had his microphone cut off in mid-sentence by a Republican committee chairman in Washington. It happened at the end of a contentious hearing on the Internal Revenue Service. The Congressional Black Caucus has called for the committee chairman’s resignation. The chairman has apologized to Cummings, but the moment of political kabuki highlights the deep divisions in a Congress that has become increasingly polarized, and less able to pass legislation. We’ll talk about that story and others this hour with political analyst Barry Rascovar.