On Earth Day, we celebrate all the gifts the world and nature make available to us. We recognize our complete dependence on its bounty. And we acknowledge the need for good stewardship to preserve its fruits for future generations.

From the world wars of Europe to the jungles of the Far East, from the deserts of the Middle East to the African continent, and even here in our own hemisphere, our veterans have made the world a better place and America the great country we are today.

The key to revenue growth is tax reform that closes loopholes and that is pro-growth. Then with a growing economy, that's where your revenue growth comes in, not from higher taxes.

The fact is, America needs energy and new energy infrastructure, and the Keystone XL pipeline will help us achieve that with good stewardship.

Our single greatest challenge is the ability to move power to markets outside North Dakota.

The irony of environmental opposition to the Keystone XL project is that stopping the pipeline to the U.S. will not stop production in the oil sands of Canada. Instead of coming to the United States, the oil will still be produced and shipped by rail or a pipeline similar to the Keystone XL to Canada's Pacific Coast.

You don't get an economy growing by raising taxes.