Coverage dated August 15, 2026 to August 20, 2026

Mark Cuban’s Arguments Against The Proposed 5% CA Wealth Tax

Headline from Forbes

Newest development Aug 20, 2026 · 2 reportsMark Cuban Fired Back At Ro Khanna Over California’s Billionaire Tax

Mark Cuban and Rep. Ro Khanna clashed over California Prop 40. Here are Cuban's 4 key arguments against the 5% billionaire wealth tax—and where Khanna pushes back.

Forbes's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Developments in this update

3 dated developments, oldest first, newest marked. Each is named by one outlet's own headline; open its reports to see every outlet that covered it.

  1. Mark Cuban schools communist Ro Khanna on the billionaire tax

    Headline from New York Post ·

  2. Mark Cuban’s Arguments Against The Proposed 5% CA Wealth Tax

    Headline from Forbes ·

  3. Newest

    Mark Cuban Fired Back At Ro Khanna Over California’s Billionaire Tax

    Headline from Blue State Blues News ·

Reports & sources

8 articles, oldest first.

  1. New York Post

    Mark Cuban delivers brutal reality check on California billionaire tax: ‘Ideology is not a strategy’ (opens New York Post)

    Published

    New York Post's feed description

    "If this passes, only idiot startup founders stay in Cali," Cuban said.

  2. FOX Business

    Mark Cuban tells Ro Khanna 'you don't understand business,' threatens investment shift over billionaire tax (opens FOX Business)

    Published

    FOX Business's feed description

    Mark Cuban warned Rep. Ro Khanna that California's proposed billionaire tax could drive startup founders out of the state, vowing to avoid investing there.

  3. New York Post

    Mark Cuban schools communist Ro Khanna on the billionaire tax (opens New York Post)

    Published

    New York Post's feed description

    Good on Mark Cuban for taking Ro Khanna down. More business leaders need to speak up against Proposition 40, the billionaire tax, especially while infighting threatens to divide the opposition to it.

  4. Forbes

    Mark Cuban’s Arguments Against The Proposed 5% CA Wealth Tax (opens Forbes)

    Published

    Forbes's feed description

    Mark Cuban and Rep. Ro Khanna clashed over California Prop 40. Here are Cuban's 4 key arguments against the 5% billionaire wealth tax—and where Khanna pushes back.

  5. Townhall

  6. Objectivist

  7. Insider

    Mark Cuban said 'only idiot' founders would stay in California under a wealth tax. We asked 3 founders if they'd leave. (opens Insider)

    Published

    Insider's feed description

    Mark Cuban says startup founders will flee California if the wealth tax passes in November. Business Insider put Cuban's theory to the test.

  8. Blue State Blues News

    Mark Cuban Fired Back At Ro Khanna Over California’s Billionaire Tax (opens Blue State Blues News)

    Published

    Blue State Blues News's feed description

    California just watched its wealthiest residents cash out and run for the state line. Then Sacramento Democrats decided the ones who stayed hadn't paid enough. Now Mark Cuban says only an idiot

Separate coverage close to this update in time and subject.

Mark Cuban’s Arguments Against The Proposed 5% CA Wealth Tax | Since Then