INSIGHTS GOP Senators Open to Corporate Tax Increase By Staff Monday, April 26, 2021 12:01 AM I believe everybody should pay their fair share. I come from the world of small business. I scratch my head when big corporations don't pay their fair share of taxes. Sen. Mike Braun (R-Ind.), commenting to Axios late last week for its story, “GOP Senators Open to Corporate Tax Increase.” Braun and other key Republican senators told Axios they may be willing to close loopholes that allow big businesses to eliminate their overall tax bill even if they oppose an increase in the corporate tax rate.