Story highlights National front-runners Donald Trump and Hillary Clinton are leading in Pennsylvania, a new poll finds

The race is expected to favor Trump and Kasich as the map turns East

Washington (CNN) National front-runners Donald Trump and Hillary Clinton are favored to win in Pennsylvania later this month, but both have just single-digit leads in the Keystone State, a new poll finds.

Trump has the support of 39% of Republicans there, according to a new Quinnipiac University survey released Wednesday . That's a nine-point advantage over Texas Sen. Ted Cruz at 30% support and a 15-point lead over John Kasich who had 24%. The Ohio governor has previously made the case that he could have a strong showing in Pennsylvania, where he was born.

The GOP race is expected to favor Trump and Kasich as the map turns East and voters are generally more moderate.

Voters will head to Pennsylvania on April 26: A large number of delegates, 71, are at stake on the Republican side, but the state's complex system for allocating delegates means that only 17 will be up for grabs on primary day.

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