For instance, the firm announced on that day that it had $60 billion of available and unused borrowing capacity split between the Federal Home Loan Bank and the Federal Reserve Bank.

Source: https://seekingalpha.com/article/4588574-first-republic-bank-opacity-kills-opportunity?source=feed_all_articles

The Treasury Department said in a letter to congressional leaders it had started taking “extraordinary measures” as the government had run up against its legal borrowing capacity of $31.

Source: https://federalnewsnetwork.com/government-news/2023/01/countdown-in-the-offing-for-political-fight-over-debt/

Unigestion's head of investments, Olivier Marciot, said he was taking advantage of higher yields on longer maturity T-Bills likely to fall due after the "X-date" - when the government would exhaust its cash and borrowing capacity.

Source: https://gazette.com/news/us-world/how-investors-are-trading-the-u-s-debt-ceiling/article_77059f06-981d-5090-8a30-c42febe4aded.html