Mark Zuckerberg is the founder, chairman and chief executive officer of Facebook. Zuckerberg found the company while at Harvard with classmates Andrew McCullum, Dustin Moskovitz, Chris Hughes, and Eduardo Saverin. He and his wife, Priscilla Chan, are also active philanthropists; in 2015, the couple founded the philanthropic limited liability company Chan-Zuckerberg Initiative.
Politically, Zuckerberg has supported a number of candidates of both parties, but in recent election cycles he has provided more support to Democrats. During the 2018 midterm election reporting cycle, Zuckerberg donated to California Democrat Katie Porter, and during the 2016 election reporting cycle, Zuckerberg made a $10,000 donation to the San Francisco Democratic County Central Committee.  
During the 2014 midterm election reporting cycle, Zuckerberg donated to Senator Cory Booker (D-NJ), Senator Marco Rubio (R-FL), Senator Orrin Hatch (R-UT), then-Speaker John Boehner (R-OH), then-former speaker Nancy Pelosi (D-CA), Paul Ryan (R-WI), Luis Gutierrez (D-IL), and candidate Sean Eldridge (D-NY), the husband of Facebook co-founder Chris Hughes.