"Congress can do ... fantasy math if it wants, but bond investors don't," warned Kentucky's Thomas Massie.

Rep. Thomas Massie (R-Ky.) warns that the Trump-endorsed tax cut bill would add $20 trillion to the debt over the next 10 years.

"Congress can do ... fantasy math if it wants, but bond investors don't," warned Kentucky's Thomas Massie.

President Donald Trump is losing support for his 'big, beautiful bill,' a budget measure that would add $3.3 billion to the national deficit over the next decade.