The Congressional Budget Office (CBO) has revised its estimate of the impact of President Trump's budget law on the U.S. budget deficit. According to their latest analysis, the law is now projected to widen the deficit by an additional $718 billion, exceeding previous estimates. This increase is primarily attributed to higher borrowing costs. As interest rates rise, the government's expenses for servicing its debt also increase, further straining the budget. The CBO's revised projection underscores the long-term fiscal challenges posed by the budget law.