Saudi Arabia fighting with Russia to become top oil supplier to China, says Helima Croft

Hosted by Brian Sullivan, “Last Call” is a fast-paced, entertaining business show that explores the intersection of money, culture and policy. Tune in Monday through Friday at 7 p.m. ET on CNBC. Helima Croft, RBC Capital Market and CNBC contributor, discusses Saudi Arabia becoming the biggest oil seller to China.