FILE – Treasury Secretary Janet Yellen speaks on the U.S.-China economic relationship at Johns Hopkins University School of Advanced International Studies, Thursday, April 20, 2023, in Washington. Yellen said Sunday that there are “no good options” for the United States to avoid an economic “calamity” if Congress fails to raise the nation’s borrowing limit of $31.381 trillion in the coming weeks. She did not rule out President Joe Biden bypassing lawmakers and acting on his own to try to avert a first-ever federal default. (AP Photo/Manuel Balce Ceneta, File)

WASHINGTON (AP) — A union of government employees has sued Treasury Secretary Janet Yellen and President Joe Biden to try to stop them from complying with the law that limits the government’s total debt, which the lawsuit contends is unconstitutional. The lawsuit comes just weeks before the government could default on the federal debt if Congress fails to raise the borrowing limit. Financial markets have become increasingly nervous about the potential for default, with economists warning that a failure to raise the debt limit could trigger a global financial crisis. On Tuesday, Biden will meet with the top Republicans and Democrats in Congress to seek a potential breakthrough. The two sides remain far apart..