Blavatnik emigrated here with his family in the 70's but still has ties to Russia.
https://www.dallasnews.com/opinion/commentary/2018/05/08/putins-proxies-helped-funnel-millions-gop-campaigns
Data from the Federal Election Commission show that Blavatnik's campaign contributions dating back to 2009-10 were fairly balanced across party lines and relatively modest for a billionaire. During that season he contributed $53,400. His contributions increased to $135,552 in 2011-12 and to $273,600 in 2013-14, still bipartisan.
In 2015-16, everything changed. Blavatnik's political contributions soared and made a hard right turn as he pumped $6.35 million into GOP political action committees, with millions of dollars going to top Republican leaders including Sens. Mitch McConnell, Marco Rubio and Lindsey Graham.
In 2017, donations continued, with $41,000 going to both Republican and Democrat candidates, along with $1 million to McConnell's Senate Leadership Fund.
SNIP
In total, Blavatnik, Intrater, Shustorovich and Kukes made $10.4 million in political contributions from the start of the 2015-16 election cycle through September 2017, and 99 percent of their contributions went to Republicans. With the exception of Shustorovich, the common denominator that connects the men is their association with Vekselberg. Experts who follow the activities of Russian oligarchs told ABC News that they believe the contributions from Blavatnik, Intrater and Kukes warrant intense scrutiny because they have worked closely with Vekselberg.
Even if the donations by the four men associated with Russia ultimately pass muster with Mueller, one still has to wonder: Why did GOP PACs and other Trump-controlled funds take their money? Why didn't the PACs say, "Thanks, but no thanks," like the Republicans said to Shustorovich in 2000? Yes, it was legal to accept their donations, but it was incredibly poor judgment.