Crypto Twitter was witness to a fierce debate this week, with billionaire investor Mark Cuban accusing SEC’s Gary Gensler of throwing crypto under the bus while a former SEC official was quick to come to the regulator’s defense.

In a spirited back-and-forth exchange on Twitter with former SEC officer John Reed Stark that started on June 14, Cuban took issue with Stark’s seeming defense of the SEC’s recent legal action against crypto exchange giant Binance.