Aho scored a power-play goal off a feed from Andrei Svechnikov to cut it to 4-1 at 16:50.
Leonard answered eight seconds later to extend it to 5-1 after he drove the net and redirected a pass from Strome.
“Whenever you’re the next line up the shift after a goal, you’re trying to do something to gain some positive momentum,” Leonard said. “We were just looking for a rim going to my side, and next thing I know, I was looking at ‘Stromer’ on a 2-on-1. I just had to get to the back door, and he made a (heck of a) play.”
Stankoven cut it to 5-2 at 10:50 of the third period when he tipped K'Andre Miller's wrist shot from inside the blue line.
"We did start to find our game in the second half," Stankoven said. "But as we know, you can't take a period and a half off. I think we gave them some easy ones tonight. Just unacceptable on myself and everyone on our team tonight."
Washington was 5-for-6 on the penalty kill, breaking Carolina’s pressure in the second and third periods.
“Credit to the PKers,” Thompson said. “We were keeping afloat, we were grinding. That PK unit was huge tonight. Guys did an amazing job. It’s not easy killing that many penalties in a row.”
NOTES: Tuch became the fifth Capitals player to score two goals in his team debut, joining Mikhail Grabovski (three goals on Oct. 1, 2013), Scott Walker (two on March 4, 2010), Alex Ovechkin (two on Oct. 5, 2005) and Brian Bellows (two on March 28, 1998). Bellows is the only other to also score multiple in his first period of play. … Thompson passed Jose Theodore for the ninth-most wins in franchise history (63). … Jordan Kyrou, who was acquired from the St. Louis Blues on June 23, had two shots on goal in 12:16 of ice time in his Capitals debut.