Subpoena showdown could overshadow Kavanaugh confirmation

Kavanaugh speaks as Trump looks on. Photo: Mandel Ngan/AFP via Getty Images

"It is not every day that a potential constitutional showdown over a presidential subpoena coincides with a confirmation hearing for a crucial Supreme Court seat. Less likely yet is a nominee who has written extensively about the very question at the heart of the dispute," the N.Y. Times' Adam Liptak writes.

The bottom line: "[T]hat novel historical moment is here."