Forget California’s billionaire wealth tax. The economist Natasha Sarin believes there are better ways to make billionaires pay up.

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If you’re worked up about what billionaires pay, wait till you hear about the millionaires.

When Americans cast their ballots in this year's midterm elections, they'll not only be picking who represents them in Congress, but also weighing in on a range of topics that could change their state laws and constitutions.