PORTLAND, Ore. — The Liberty capped off a stretch of playing four games in a week Thursday night with a comfortable 100-82 win against the Portland Fire. The Liberty (3-1) didn’t have a great first half. But a third-quarter attack, led by Breanna Stewart, allowed New York to put the game away for good. The first 10 minutes after halftime was a promising turn of events, considering leading up to Thursday a troubling yet familiar trend had started to emerge in the Liberty’s first three games. Similar to a year ago, New York had been struggling in third quarters. That issue appeared to be a carryover into this campaign. Stewart said the team had to nip it in the bud — and it started with her. Breanna Stewart attempts a shot during their May 14, 2026 win. NBAE via Getty Images “When we have the lead, knowing that the other team is going to come out and try to punch first, that’s on me,” Stewart said after Tuesday’s stunning loss to the Fire.…