Jayson Werth chipped in with four hits and an RBI as the Nats took the second contest of a four-game series.
Edwin Jackson (9-9) collected the win, yielding four runs on seven hits and a walk to go with eight strikeouts over 5 2/3 innings.
Chicago starter Chris Rusin (0-2) was tagged for five runs on eight hits with a walk and a strikeout over an inning-plus.
Alfonso Soriano knocked in three runs for the Cubs.
Couple mistakenly served bag of cash at McDonald's drive-thru
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