Marco Rubio points out that Houthis, militias in Iraq, Hezbollah, Hamas, and the civil war in Syria all share one thing. He says if you travel through the Middle East, it's about all the instability there. What do these things have in common? Behind each destabilizing activity is a single common denominator: the Iranian regime. The speaker notes they are troubled by Houthi engagement since those groups wouldn't exist without Iranian support. Defense agreements with Saudi Arabia are being fulfilled while other countries in the region also recognize this role.