U.S. airlines sitting on $10 billion in travel vouchers, that should have been refunded

U.S. airlines are estimated to be sitting on more than $10 billion in travel vouchers that should have been cash refunds from canceled flights, a group of senators released on Friday.

Many U.S. airlines are cancelling between 60% and 80% of their flights, and under federal law passengers on those flights are entitled to full refunds, Senators Ed Markey, Elizabeth Warren and Richard Blumenthal said in a statement.

The question is if these lawmakers/senators would force the airlines to refund the passengers or would they sleep with the airlines?