The oligarch in question--for some reason The Federalist doesn't link his Wikipedia page--is Igor Kolomoisky, described as "a Cypriot-Ukrainian billionaire business oligarch." Kolomoisky is one of those triple citizenship guys--a veritable citizenship collector. Hey, ya never know when one of those will come in handy! Ukraine, Cyprus, Israel. I guess Cyprus is for money laundering purposes.
Here are the opening paragraphs--follow the link for details:
Robert Powell, the husband of Rep. Debbie Mucarsel-Powell, D-Fla., reportedly took $700,000 from a Ukrainian oligarch named Igor Kolomoisky. Mucarsel-Powell sits on the House Judiciary Committee, the committee that drafted two articles of impeachment against President Donald Trump for his alleged abuse of power with regards to Ukraine.
In 2018, the Daily Beast reported that a number of businesses linked to Kolomoisky hired Powell as an attorney. One of those firms paid Powell at least $700,000 over two years, according to public records.
The Miami Herald reported Powell was working for companies tied to Kolomoisky for 10 years. Powell made most of his money in the two years leading up to his wife’s election in 2018.
Kolomoisky has been accused of contract killings and embezzlement in the past. Yet, in 2018 when Mucarsel-Powell was running for her seat, she did not see her husband’s work as relevant to her campaign.
And there's more. Maybe Dems think someone who knows how to arrange contract killings could come in handy.
ADDENDUM: Totally unrelated, except that it's all about Lefty sleaze and dishonesty, is this piece from AmThinker: Greta Thunberg paints her German train ride as cattle car deal, actually rode first class.