WASHINGTON (AP) — Supreme Court nominee Brett Kavanaugh says he would have shaken the hand of a school shooting victim's father during a break in last week's Senate hearing had he recognized him before being whisked away by security detail.

Kavanaugh's explanation for the encounter with Fred Guttenberg— captured in an Associated Press photo that went viral on social media — was among a 263-page response to written questions from senators on a range of issues including abortion, executive power and his personal finances.

Kavanaugh wrote that he assumed the man who approached him "and touched my...