Mark Cuban is convinced that Kamala Harris will not impose a tax on unrealized gains if she is elected President. However, Ms. Harris has not backed off from her previously stated position of favoring a "billionaire minimum tax" that would indeed include taxing unrealized capital gains. Of course, there's no guarantee that she could get such a tax through Congress. Still, we have a choice between two candidates with very different ideas on taxation. So, choose wisely when you vote.