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.

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.