•Former Mayor Sheila Dixon, lawyer Elizabeth Embry, City Councilmen Nick Mosby and Carl Stokes, state Sen. Catherine Pugh and businessman David Warnock — the top six Democratic contenders for mayor, as determined by independent public polling — have been invited to debate from 1 p.m. to 2:30 p.m. Tickets are no longer available. WJZ-TV will broadcast the debate at 7 p.m. on its digital channels (Comcast channel 201, Verizon Fios channel 483 and channel 13.2 for digital antenna users). The debate will be streamed on baltimoresun.com and CBSbaltimore.com.