In the 2014-15 season the Rangers won the Presidents Trophy for the third time in franchise history and their seventh division title by finishing with the best record in the NHL at 53–22–7. The 53 wins and 113 points both set franchise records. The division title was the Rangers first in the Metropolitan Division, which was created during the NHLs realignment in the 2013 off-season. The team won 28 road games in the regular season, breaking the franchise record set the previous season. Over the course of the season the Rangers agreed to terms on a contract extension with Cam Talbot, Marc Staal, and Mats Zuccarello. In the playoffs the Rangers dispatched the Pittsburgh Penguins in five games in the first round. The Rangers then came back from a 3–1 series deficit to win their second-round series against the Capitals in seven games, becoming the first team in NHL history to battle back from a 3–1 deficit in back-to-back seasons and sending the Rangers to the Eastern Conference Final for the third time in four years. However, after winning the first game against the Tampa Bay Lightning, the Rangers lost Game 2 by four goals. The two teams split the first four games of the series, but the Rangers lost Game 5 by a 2–0 scoreline at home, which gave the Lightning an opportunity to clinch the conference finals in Tampa Bay. However, this did not happen in Game 6, as Derick Brassard scored a hat-trick and assisted on two other goals in an emphatic 7–3 Rangers victory to force Game 7 in New York. There, the Lightning shutout the Rangers 2–0, ending the Rangers season and marking the first occasion the Rangers had ever lost a Game 7 at home in franchise history and the first time they lost an elimination game at home since they lost to Buffalo in 2007 Stanley Cup playoffs.

Based on the above article, answer a question. Which teams did the Rangers beat in the playoffs?
Capitals