US Treasury Secretary Janet Yellen has said there are "no good options" for the US economy if Congress fails to raise the nation's borrowing limit of $31.381tn in the coming weeks. This warning has added urgency to a meeting between President Joe Biden and congressional leaders from both parties scheduled for Tuesday. Democrats and Republicans are at loggerheads over whether the debt limit should be up for negotiation. Yellen suggested that financial and economic chaos would ensue if the borrowing limit is not increased before the Treasury Department's "extraordinary measures" run out in early June.