U.S. Open Round 2 updates: Thomas and Schauffele charging, Clark steady on top

At the U.S. Open at Shinnecock Hills, Wyndham Clark holds the lead after the first round, though a three-putt bogey at the ninth hole cut his advantage to two strokes in Round 2. A fog delay pushed play into Friday morning, with 50 players completing their opening round at dawn before second-round tee times were shifted back 15 minutes. Justin Thomas and Xander Schauffele are among those making moves up the leaderboard as wind and firming greens are making conditions increasingly challenging.