By AP/KWMU
Washington – The head of Missouri's Democratic party is asking delegates to next week's convention in Boston not to cross any picket lines.
The Boston police union is locked in a bitter contract dispute with the city's mayor. It's vowed to picket during the convention to draw attention to its cause.
State Democratic Party Chairwoman May Scheve Reardon says she won't cross any picket lines that may form and neither will her staff.
A Massachusetts state arbitrator faces a deadline today for returning a contract agreement that would be binding on both sides.
The four-day Democratic convention opens Monday at the FleetCenter sports arena in Boston.