Yellen pushes global minimum tax as White House eyes new spending plan - The Washington Post

... The GOP tax cut lowered the official rate from 35 percent to 21 percent and pushed the effective rate lower. After the tax cut, the effective rate paid by the largest Fortune 500 companies fell from 21 percent to about 11.3 percent, with 91 of the world's biggest corporations paying zero dollars in federal taxes. The tax cut has contributed to the staggering federal debt...
https://www.washingtonpost.com/us-policy/2021/03/15/yellen-pushes-global-minimum-tax-white-house-eyes-new-spending-plan/