If Warren Buffett made his money from ordinary income rather than capital gains, his tax rate would be a lot higher than his secretary's. In fact a very small percentage of people in this country pay a big chunk of the taxes.

It's really a question of fairness and what kind of country we're going to live in. There are 22,000 people making over $1 million. They're paying an effective tax rate in the teens. As Warren Buffett said, he pays less in taxes effectively than his secretary does. That's not right.

We will attract more people to Kentucky by lowering our income tax rate. In fact, lowering the income tax rate is the single most important thing we can do to create opportunity.

Ford's federal income tax rate was just 2.3 percent in 2009 even though it made $3 billion in profits.

The biggest - one of the biggest barriers to driving economic growth is the capital gains tax rate. I propose taking it to zero.

When Warren Buffett invests in a company, he is conferring upon that company something very unique: his credibility.