Facebook co-founder Mark Zuckerberg has increased his lobbying efforts for immigration reform with contributions to a U.S. Senator.

In August, billionaire Mark Zuckerberg, CEO of Facebook, met with Sen. Marco Rubio, R-Fla., at Facebook’s Menlo Park, California campus to discuss comprehensive immigration reform. In April, Zuckerberg’s political advocacy group, FWD.us, ran ads in conservative areas with urging support for a bipartisan Senate immigration bill.

Sen. Marco Rubio’s campaign committee reported this week that it had received $5,200 on 9/25 from Mark Zuckerberg, including $2,600 for Rubio’s 2016 primary and $2,600 for his 2016 general election.

Rubio reported receipts of $433,243 and disbursements of $182,039 in the third quarter, leaving $2,227,790 cash on hand as of 9/30.

View posting on third quarter fundraising by the Rubio Victory Committee.