With Trump testing positive and a systemically important exchange in deep trouble, CoinDesk’s Markets Daily is back for your latest crypto news roundup!This episode is sponsored by Crypto.com, Nexo.io and Elliptic.co.Today's stories:Bitcoin, Stocks Fall as Trump Tests Positive for COVID-19 The cryptocurrency and Asian stock markets dumped early Friday after U.S. President Donald Trump announced he and his wife had tested positive to COVID-19.Ethereum 2.0 'Dress Rehearsal' Gets a Do-Over With ZinkenDevelopers will take a second whack at a final Ethereum 2.0 testnet after the first, Spadina, failed due to “critical peering issues.”BitMEX 'Attempted to Evade' US Regulations, CFTC Charges  The CFTC has charged BitMEX, CEO Arthur Hayes and other affiliated entities with offering US customers crypto trading services in violation of federal law.Should DEXs Be Worried After BitMEX? DeFi Founders Weigh In The sudden takedown of crypto exchange BitMEX has cast a new light on Ethereum’s decentralized finance (DeFi) markets.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.