John Roberts
Chief Justice John Roberts.
  • The Supreme Court heard oral arguments Tuesday on Biden's student-loan forgiveness effort.
  • Several conservative justices questioned whether the plan was an overreach of executive authority.
  • Justice Gorsuch asked how the relief is fair to those who already paid off their loans.

Several of the Supreme Court's conservative justices dug into whether President Biden's student-loan forgiveness was an overreach of his executive power in a fiery and lengthy debate over the relief on Tuesday.

"We're talking about half a trillion dollars and 43 million Americans," Chief Justice John Roberts said during oral arguments, referring to the estimated costs of Biden's plan to cancel up to $20,000 in federal student loans and the number of affected borrowers. "How does that fit under the normal understanding of 'modifying'?"