‘Only idiot startup founders stay in Cali’: Mark Cuban rips Ro Khanna on billionaire tax—reveals a rift between Democrats and their wealthy supporters | Fortune0

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• August 17, 2026

Billionaire entrepreneur Mark Cuban didn’t hold back in a public squabble with Rep. Ro Khanna about the proposed wealth taxes in California—cracking open a feud between one of the wealthiest Democratic Party supporters and the left wing of the party. The two sparred over a proposed wealth tax that would ask the state’s richest residents