Let me put it very plainly, if we Republicans choose Donald Trump as our nominee, the prospects for a safe and prosperous future are greatly diminished.

It's not government that makes business successful. It's not government investments that makes businesses grow and hire people.

I want to invest in research. Research is great. Providing funding to universities and think tanks is great. But investing in companies? Absolutely not.

People from both political parties have long recognized that welfare without work creates negative incentives that lead to permanent poverty. It robs people of self-esteem.

There are some who would have a presidential candidate describe and explain his church's distinctive doctrines. To do so would enable the very religious test the founders prohibited in the Constitution. No candidate should become the spokesman for his faith. For if he becomes President he will need the prayers of the people of all faiths.

Let me tell you, the heart of my tax proposal: I will not raise taxes on the American people. I will not raise taxes on middle-income Americans.

We don't know what's causing climate change on this planet. And the idea of spending trillions and trillions of dollars to try to reduce CO2 emissions is not the right course for us.