Richard Lazer is an ally of the city's politically powerful building trades, and some Delaware County Democrats are worried he'll smash their dream of putting a Delco resident in Congress. The vast majority of the Fifth District is in Delaware County, but it includes a sliver of South Philly, where Lazer lives. Political observers think Lazer may be able to win if he captures the majority of the city's ballots at the same time that the suburban vote is fractured among the race's numerous Delco candidates.