A new poll shows Democrats have maintained a 10-point advantage over GOP congressional candidates.  Emerson College released survey results on Thursday that found Democrats have 50.3 percent support from likely voters while Republicans have 39.5 percent support.  A total of 10.2 percent of survey participants were undecided about which party they’d support. An April poll found…

A new poll shows Democrats have maintained a 10-point advantage over GOP congressional candidates.  Emerson College released survey results on Thursday that found Democrats have 50.3 percent support from likely voters while Republicans have 39.5 percent support.  A total of 10.2 percent of survey participants were undecided about which party they’d support. An April poll found…