WorldHow is the US helping Saudi Arabia fight the Houthis in Yemen?

Yemen’s government has taken control of a key Red Sea port city after clashes with the Houthis and says its forces seized the Bab al-Mandab Strait. The Saudi-led coalition says it is providing air cover for the Yemeni army over the strait with 100 warplanes. US Secretary of State Marco Rubio commented on the latest developments in Yemen and Saudi Arabia.