The son of liberal billionaire financier George Soros donated $650,000 to Democratic campaigns and committees last year, according to Federal Election Commission records.

Alexander Soros, Soros's son and managing partner of Soros Brothers Investments, has quietly stepped up as a major liberal donor but has remained relatively obscure due to his father garnering much of the media attention in the family.

Alex's generous contributions spanned across a number of liberal party committees and campaigns, including two donations totaling $203,400 to the Democratic Congressional Campaign Committee's (DCCC) recount and building funds, while providing an additional $33,900 to the committee during the primary period.

Alex also gave large amounts to the Democratic Senatorial Campaign Committee (DSCC). Like his contributions to the DCCC, Soros gave the DSCC $203,400 for its recount and headquarters account, with another $33,900 going towards the primaries.

The Democratic National Committee's (DNC) building account additionally received six figures from Soros. Alex poured $101,700 into the DNC's headquarters account and $33,900 was provided to the committee for the general election.

Soros also gave thousands to the campaigns of Democratic Sens. Claire McCaskill (Mo.), Bob Casey (Pa.), Amy Klobuchar (Minn.), Kirsten Gillibrand (N.Y.), Jon Tester (Mont.), and Chris Murphy (Conn.), among others.

Alex has posted pictures of himself on social media day drinking with Democratic leadership, including Sen. Chuck Schumer (D., N.Y.), the Daily Caller reported last year.

"Always great to catch up with senator @chuckschumer who has seized the moment as the head of the #democrats in the #senate and masterfully helped preserve the assault on our nations values and #democracy! Thank you Chuck! #chuckschumer #legend #opposition #dumptrump,", Soros's Instagram caption reads.

During the 2016 election cycle, Alex increased his contributions to Democrats by millions of dollars by pouring $4.5 million into liberal committees. This was a drastic shift from the 2014 election cycle, when Soros gave $88,000 to Democratic committees.

Alex did not return a request for comment on his contributions by press time.