US President Joe Biden's use of an amendment to the constitution to avoid default bypassing Congress will lead to a constitutional crisis, says Treasury Secretary Janet Yellen. "We should not find ourselves in a situation where we have to consider whether the president can solve the issue of debt," Yellen said in an interview with ABC News.

At the same time, Managing Director of the International Monetary Fund (IMF) Kristalina Georgieva expressed the opinion that the US authorities will not bring negotiations on the debt ceiling to default.