You name it, former U.S. Marshal Jason Wojdylo seized it: Racehorses. Luxury cars. Paintings. Cryptocurrency. Recently retired after a 25-year career, Wojdylo served as the Marshals Service's lead expert in asset forfeiture, and he's watching as his former colleagues wreak havoc on Russian oligarchs and their ill-gotten gains under orders of President Joe Biden and Task Force KleptoCapture. U.S. officials, along with governments around the world, have sanctioned Russian oligarchs and some of their family members as punishment for the Ukrainian invasion. Oligarchs are widely considered to have improperly benefited from their close relationships to President Vladimir Putin, and in many cases have been accused of illegally accumulating their wealth at the expense of ordinary Russians. Although asset forfeiture is a fairly common practice to target drug dealers, con artists and embezzlers in that way — with the money returned to victims or kept by law enforcement — Congress would have to pass a new law allowing the proceeds to go to Ukraine, as Biden has proposed. Experts say freezing these assets is just one step in what is usually a lengthy cat-and-mouse game between federal investigators and criminals, fought via electronic financial records, shell companies, offshore bank accounts and street-level surveillance. "Seizing is only the beginning of the process," said Aixa Maldonado, a former top federal prosecutor who oversaw billions of dollars in seizures from drug lords and other criminals. "It takes forever."