We cut tax exemptions in 1986, it was the most admired tax reform in U.S. history. Congress and the president worked together then to eliminate scores of loopholes and exemptions and deductions; this made taxes much simpler, and allowed a major cut in tax rates.

It used to be that we taxed property - zapped farmers basically. And there were very rich people who didn't pay that much tax. So in 1913, they put in the income tax. It was incredibly popular. The tax we love to hate today.

Starting in the '80s or so, after the United States sharply cut its rates, other countries decided they better do it too, and here's how you do it: you just wipe out the exemptions, the deductions, the credits, the depreciation allowances. And people complain, "Oh my God, it's terrible," but you give them much lower rates and you give them an easier form to file, and people accept that tradeoff.

In the United States, unlike any other advanced democracy, money really talks. Our Supreme Court has said that spending money on politicians is a form of free speech. No other court has said that.

Mortgage is one of the most popular deductions. It costs the Treasury about $103 billion a year. Now that's money we could use to treat wounded veterans or reduce the deficit or fill the border. Instead, we give it a subsidy to homeowners, and it goes mainly to the richest homeowners in America, because only one third of Americans itemize their deductions. It doesn't work. Many countries have gotten rid of the mortgage interest deduction. Almost all of them have higher homeownership rates than we do.

France, they're the world champion at soaking the rich on taxes. And at one point, they had what they called a hyper tax, 75 percent, and Gérard Depardieu and many others left the country.

Our tax code becomes so absurdly complex every 32 years that we have no choice but to scrap it and re-write. The 32-year period is up in 2018. So the time has come. History tells us that we're going to produce a fairer, simpler tax code by 2018.