Commentary: Supreme Court conservatives may want to block student loan forgiveness. But they've hit a snag

Oral arguments before the Supreme Court on Tuesday in a much-watched student loan forgiveness case, Biden v. Nebraska, pitted two of the conservative majority's beloved legal doctrines against one another.

The case for striking down President Joe Biden's program, which would forgive about $400 billion in federal student loan obligations, turns on the court's recently minted "major questions" doctrine. That doctrine, whose legal provenance is questionable and whose contours are still very much being worked out, holds that for "major" questions of "vast economic or political