Trump Jr. invests $4M in crypto-focused startup Thumzup despite minimal revenue. Thumzup allocates up to 90% of liquid assets to Bitcoin and other cryptocurrencies. Eric Trump joins crypto-heavy Metaplanet; both brothers advise Dominari Securities. Donald Trump Jr. has sparked fresh interest with a $4 million stake in Thumzup Media Corp., a little-known Los Angeles startup navigating the crowded world of social media and advertising tech. Thumzup, which pays everyday users to promote brands on Instagram, hasn’t made much noise financially […]