Republican presidential candidate, Sen. Marco Rubio, R-Fla., talks with Anderson Cooper during a commercial break at a CNN town hall event, Tuesday, Feb. 16, 2016, in Greenville, S.C. (AP Photo/Paul Sancya)

Top Rubio Donors Include Goldman Sachs, Microsoft, Tech Billionaire Larry Ellison

The Koch Brothers, private prison corporation the GEO Group, and powerful pro-Israel donors have also given generously to the campaigns of the junior senator from Florida.