The breach of the debt ceiling officially starts the clock on how long Trump and Congress will have to act to avoid a financially catastrophic default.

U.S. Treasury Secretary Janet Yellen said that the government will reach its statutory borrowing limit on Tuesday and begin employing "extraordinary measures" to keep from breaching the cap and risking a potential catastrophic default.

In one of her last acts as Treasury Secretary, Janet Yellen says her agency will start taking “extraordinary measures,” or special accounting maneuvers intended to prevent the nation from hitting the debt ceiling,