The CNN 100 takes a look at the top 100 House races, from now until Election Day.

Editor's Note: In the final 100 days before Election Day, CNN has been profiling one race at random each day from among the nation's top 100 House races, which we've dubbed "The CNN 100." Read the full list here. Today's featured district is:

Pennsylvania 6th – Rep. Jim Gerlach is seeking a 5th term
Primary: May 18, 2010
Location: Philadelphia suburbs
Days until Election Day: 92

Even though Democrats may have their hands full this year defending dozens of vulnerable House incumbents, they still have high hopes of knocking off several Republican members in districts that President Obama carried in 2008. One such GOP incumbent is Rep. Jim Gerlach, who is no stranger to the Democratic target list.

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