KEITH J. ROTHFUS: “I want to go after those folks who are pushing this poison.”

The Trump Administration's decision to withdraw from the JCPOA was wise in my opinion.

Regulatory reform and technological advances can help the financial sector regain its vibrancy.

I am encouraged by this Administration's work to ensure that nonbank lenders and fintech firms are subjected to clear and robust rules.

Now that the U.S. has withdrawn from the Iran deal, we have the opportunity to use additional sanctions to change the hostile behavior of the Iranian government.