Voters in Maryland, Delaware, Pennsylvania, Connecticut and Rhode Island vote Tuesday

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WASHINGTON (CNN) — Donald Trump and Hillary Clinton are poised to take big steps toward their party’s presidential nominations as voters in five northeastern states head to the polls Tuesday.

Voters in Connecticut, Delaware, Maryland, Pennsylvania and Rhode Island will cast their ballots with hundreds of delegates at stake. Clinton and Trump are hoping to sweep the contests, which would severely complicate the already daunting electoral math facing their challengers.

For Trump, fresh off his thumping win last week in New York, dominating the “Acela primaries” would underscore his argument that he is the only viable Republican candidate. The Acela nickname comes from the high speed Amtrak train that spans the northeast corridor.

Clinton, meanwhile, still basking in her own commanding victory in New York, is targeting big wins to bolster her contention that, despite his energetic challenge, Vermont Sen. Bernie Sanders cannot overtake her and deprive her of the Democratic nomination.

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