By Patrick Hedlund, DNAinfo News Editor

NEW YORK CITY — New Yorkers take to the polls Tuesday to cast their votes in a handful of hotly contested Congressional primaries that could redefine the city's political landscape.

In upper Manhattan’s 13th Congressional district, one of the country's most competitive and closely watched Democratic primaries pits four-decade incumbent Rep. Charles Rangel against upstart State Sen. Adriano Espaillat in a district that was recently redrawn to include a majority Latino population.

In Brooklyn’s 8th Congressional district, outspoken Councilman Charles Barron makes his bid for the House against party darling Assemblyman Hakeem Jeffries in the heavily African American district, where Barron has used his activist past to push for a term in Washington, D.C.

Democratic Rep. Nydia Velazaquez, riding endorsements from a host of high-profile pols, will vie for an 11th term in Congress against Councilman Erik Martin Dilan in the 7th Congressional district, which covers parts of Brooklyn, Queens and lower Manhattan.

In Queens’ 6th Congressional district, the packed field features Democratic challenges from Flushing Assemblywoman Grace Meng, Assemblyman Rory Lancman, and Councilwoman Elizabeth Crowley in one of the most ethnically diverse districts on the ballot.

Voters can find their designated polling places at the city Board of Elections website, and report any problems to poll workers there or by calling their borough offices.