America has been a force for much good in the world. But we should learn from the mistakes of an over-expansionist foreign policy and return to the restraint that George Washington and John Quincy Adams advocated.

If you look across the economy, if you have multiple players in an industry, you have more customization, more innovation, greater choice for consumers. The more you have consolidation, the less likely you are to invest in innovation. It becomes all about driving down cost and mass production. And that's not good for innovation in an industry.

I'm not an apologist for Iran's actions. Iran certainly has supported activities of terrorism, and the Houthis don't have clean hands. The Houthis have engaged in crimes too. But the idea that that justifies American involvement in a civil war in Yemen doesn't make any sense strategically.

Ro Khanna Quotes