JERSEY CITY — Spectators ringed the 17th green at Liberty National on Saturday, many of them yelling terms of endearment at Phil Mickelson. “Hoboken loves you, Phil,” one said. But Mickelson played his Presidents Cup foursomes match, a record breaker, primarily for an audience of three.

After his playing partner, Kevin Kisner, sank a seven-foot birdie putt to seal the pair’s 2-and-1 victory against Jhonattan Vegas and Emiliano Grillo, Mickelson was joined on the green by his wife, Amy, and their two younger children, Sophia, 15, and Evan, 14.

Led by a group of gifted players who were in diapers when Mickelson first played in this event, the United States won 6½ of the 8 points available in the morning foursomes and in the afternoon four-ball matches. The Americans ended the day leading the International team, 14½ to 3½, with 12 singles matches to be played Sunday in front of a crowd that might include President Trump.

To attend the final two days of this biennial competition, the Mickelson children traveled from San Diego on Friday after their school let out.