Obama administration has sold more than $115 billion in weapons to the Saudi kingdom

In addition to providing Saudi Arabia with intelligence and flying refueling missions for its air force, the United States has enabled the bombing campaign by supplying $20 billion in weapons over the past 18 months. In total, President Obama has sold more than $115 billion in weapons to the Saudi kingdom – more than any other president.

27 U.S. Senators Rebel Against Arming Saudi Arabia
https://theintercept.com/2016/09/21/27-u-s-senators-rebel-against-arming-saudi-arabia/