Maryland Democratic Sen. Barbara Mikulski said Monday that she will not seek reelection in 2016, opening a seat long coveted by Free State Democrats looking to advance.
The race to replace the 78-year-old Mikulski — the longest-serving woman in congressional history — could pit Democratic powerhouses against one another. Potential candidates include a former governor, six of the seven Democratic members of the House delegation, an Obama Cabinet secretary and the mayor of the state's largest city.
Read more at Politico: http://www.politico.com/story/2015/03/barbara-mikulski-no-reelection-2016-115650.html