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Donald Trump and Hillary Clinton hold double-digit leads in the April 26 primary contest of Pennsylvania, according to results from a new NBC News/Wall Street Journal/Marist poll.

In the Republican race, Trump gets support from 45 percent of likely Republican primary voters in the state — followed by Ted Cruz at 27 percent and John Kasich at 24 percent.

NBC News

Trump performs the best among those who strongly support a candidate (getting support from 57 percent from that group), men (52 percent), those without a college degree (52 percent) and those in the Northeast part of the state (52 percent).

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He performs the worst among college graduates (37 percent), women (39 percent), white evangelicals (40 percent — but still leading Cruz's 36 percent) and in the Philadelphia suburbs (38 percent — leading Kasich’s 34 percent).

In the Democratic race, Hillary Clinton is ahead of Bernie Sanders by 15 points among likely Democratic voters in Pennsylvania, 55 percent to 40 percent.

NBC News

Clinton leads among African Americans (67 percent to 29 percent), those ages 45 and older (66 percent to 28 percent), women (62 percent to 34 percent), self-identified Democrats (60 percent to 36 percent) and those strongly supporting a candidate (59 percent to 41 percent).

Sanders holds the edge among those who are under 45 (60 percent to 37 percent), those who are "very liberal" (58 percent to 41 percent), independents (55 percent to 39 percent) and men (49 percent to 45 percent).

Pennsylvania is one of five states holding presidential primaries on Tuesday; the others are Connecticut, Delaware, Maryland and Rhode Island.

Clinton, Sanders Lead Trump in General Election Matchups

In hypothetical general-election matchups in the Keystone State, Clinton leads Trump by 15 points among registered voters, 54 percent to 39 percent, and Cruz by 11 points, 52 percent to 41 percent.

But Clinton trails Kasich, 48 percent to 45 percent.

Sanders, meanwhile, is ahead of Trump by 20 points (57 percent to 37 percent), Cruz by 22 points (58 percent to 36 percent) and Kasich by six points (50 percent to 44 percent).

Forty-nine percent approve of Obama’s job in Pennsylvania

Also in the poll, President Obama's job-approval rating in Pennsylvania is at 49 percent among registered voters, Democratic Gov. Tom Wolf's is at 45 percent, and Republican Sen. Pat Toomey's is at 43 percent.

The NBC/WSJ/Marist poll was conducted April 18-20 of 2,606 registered voters (which has a margin of error of plus-minus 1.9 percentage points), 734 likely Democratic primary voters (plus-minus 3.6 percentage points) and 571 likely Republican primary voters (plus-minus 4.1 percentage points).