Dak Prescott threw for 330 yards and four touchdown passes to lead the host Dallas Cowboys past the Washington Football Team, 56–14, Sunday night in Arlington, Texas. Ezekiel Elliott scored two touchdowns, one on a run and the other on a reception. DeMarcus Lawrence added a deft interception and nimble 40-yard return for another score as Dallas (11–4) beat Washington (6–9) for the second time in 15 days, pushing its NFC East rival to the brink of elimination from the postseason. After clinching the division title earlier in the day, there was no letup in the Cowboys as they scored touchdowns on five straight possessions in the first half. Those scores, combined with Lawrence’s pick-six on a pass that he tipped and hauled in at the line of scrimmage, gave Dallas a 42–7 lead at the break. The output tied a team record for the most points scored in a …