(The Center Square) – The group Americans for Tax Reform is warning that if Vice President Kamala Harris is elected president, and follows through with promised tax cut rollbacks, Wisconsin’s federal-state corporate income tax rate would jump. “Wisconsin’s all-in 33.7% rate under the Harris plan is higher than China’s 25% rate, higher than the world average rate of 23.5%, higher than the EU average rate of 21% and higher than the Asia average rate of 19.8%,” according to ATR. Americans for Tax Reform says Harris is looking to raise the corporate tax rate to 28%. The federal tax rate is current…