The US Supreme Court has heard arguments in back-to-back cases that could determine the fate of more than 40 million Americans’ student loans.

It comes after President Joe Biden, a Democrat, announced a plan last year to forgive up to $10,000 (£8,400) in federal student loans per borrower.

So far, Republican-appointed lower court judges have blocked the plan.

Top court justices on Tuesday questioned if the president’s actions were lawful and warranted.

The Supreme Court, which has a 6-3 conservative majority, will make