There is no such thing as a safe lead at a major championship. Wyndham Clark lived that on his way to a second U.S. Open crown.

The American continued his extraordinary revival, posting the lowest 36-hole score ever recorded in a US Open at Shinnecock

Wyndham Clark has built a four-shot lead at the US Open, reaching the halfway stage at seven under par as he hunts for redemption at Shinnecock Hills Golf Club.