To answer your question, it depends. Reagan apologists (falsely) claim tax cuts resulted in otherwise higher revenues, so, counter-intuitively, if the government collected more money, on this thinking, it's a credit to Reagan. Reagan's largely responsible for flattening taxes, but he had enablers in Congress, the people who actually make the laws.
I'm pretty sure the 26.9% figure in the article is ratio tax revenue to GDP, and the U.S. is typically the second lowest in the industrialized world (after Japan). Republicans in general are in favor of reducing the Federal Income Tax, even if it means raising payroll taxes. The payroll tax is regressive, and the income tax is progressive. David Cay Johnson, tax reporter for the NYT, hits all the major notes in his book Perfectly Legal.
Most importantly, tax cuts without spending cuts are not tax cuts. Such policies shift (or redistribute) the tax burden to future generations.