Billionaires like Sergey Brin and Chris Larson donate millions to fight California’s proposed wealth tax. Stuart Varney and Madison Alworth discuss the tax exodus and Mark Cuban’s warning to move startups out of the state.

Stuart Varney reports on California’s proposed wealth tax as billionaires donate $40 million to defeat the ballot measure. Madison Alworth discusses how Google’s Sergey Brin and Ripple’s Chris Larson are funding the fight. Mark Cuban warns he will advise startups to leave California if the tax passes, highlighting a growing taxpayer exodus from Los Angeles.