Editor's note: All of tonight's U.S. presidential primary races have been called by media outlets. Hillary Clinton is projected to win the Democratic contests in Connecticut, Delaware, Maryland and Pennsylvania, and Bernie Sanders is projected to win in Rhode Island. On the GOP side, Donald Trump is projected to win all five states. - Stephanie
Editor's note: The Connecticut Democratic primary is the only remaining contest that media outlets have not called tonight. With 46 percent reporting, Bernie Sanders leads Hillary Clinton, 50-48 percent, in the state according to AP. Clinton is projected to win Delaware, Maryland and Pennsylvania. Sanders is projected to win Rhode Island. In the GOP race, Donald Trump is projected to take all five states. - Stephanie
Editor's note: Donald Trump is projected to win all five of tonight's Republican primaries. Hillary Clinton is projected to win the Democratic primaries in Delaware and Maryland, but no calls have been made yet in the party's Connecticut, Pennsylvania and Rhode Island contests. - Stephanie
Editor's note: NBC News said it projects Republican Donald Trump won Pennsylvania, Maryland and Connecticut "by a significant margin." The network had the same characterization for Democrat Hillary Clinton's win in Maryland. The race between Clinton and Bernie Sanders has not been called in Pennsylvania, where the most Democratic delegates are at stake Tuesday night. We're also watching results from Delaware and Rhode Island. - Stephanie
Upcoming: Primary polls close in Connecticut, Delaware, Maryland, Pennsylvania and Rhode Island at 8 p.m. ET. We'll be watching the results and will stream the Democratic and Republican candidates' speeches.
Editor's note: Five Northeastern states – Connecticut, Delaware, Maryland, Pennsylvania and Rhode Island – vote today in their respective presidential primaries; the Democrats have the biggest bounty of the day with 462 delegates, while Republicans will hand out 172. Republican frontrunner Donald Trump is poised to sweep all five states, while Democrat Hillary Clinton is favored to win most or all of Tuesday's contests. Also in Maryland, a dozen Democratic candidates are competing to replace Baltimore Mayor Stephanie Rawlings-Blake, who opted not to run for re-election in the wake of last year's Freddie Gray protests, saying she wanted to spend the remainder of her term "focused on the city's future." State Sen. Catherine Pugh currently leads the race, according to recent polling. We'll be following these races and more all day, so be sure to follow our feed for the latest updates. - Rebecca
Pennsylvania/ˌpɛnsᵻlˈveɪnjə/ (Pennsylvania German: Pennsilfaani), officially the Commonwealth of Pennsylvania, is a state located in the northern and Mid-Atlantic regions of the United States. The Appalachian Mountains run through its middle. The commonwealth borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie and the Canadian province of Ontario to the northwest, New York to the north, and New Jersey to the east.
Pennsylvania is the 33rd largest, the 6th most populous, and the 9th most densely populated of the 50 United States. The state's five most populous cities are Philadelphia (1,560,297), Pittsburgh (305,801), Allentown (118,577), Erie (100,671), and Reading (89,893). The state capital is Harrisburg. Pennsylvania has 51 miles (82 km) of coastline along Lake Erie and 57 miles (92 km) of shoreline along the Delaware Estuary.
The state is one of the 13 original founding states of the United States; it was originally founded in 1681 as a result of a royal land grant to William Penn, the son of the state's namesake. It was the second state to ratify the United States Constitution, on December 12, 1787. Independence Hall, where the United States Declaration of Independence and United States Constitution were drafted, is located in the state's largest city of Philadelphia. During the American Civil War, the Battle of Gettysburg was fought in the south central region of the state.