U.S. Supreme Court nominee Brett Kavanaugh’s confirmation seems all but certain. But that doesn’t mean he’s taking it easy.

The Supreme Court is set to kick off its 2018 term on Oct. 1, just days after the Senate plans to vote on his selection.

If seated, his first high court oral argument sitting will be packed with cases ranging from separation of powers to disabilities law to the nitty-gritty of what constitutes a “robbery.”

And then there’s...