The Elizabeth Warrens of the world have long complained about how the rules in Washington and on Wall Street are rigged in favor of the rich. Well, there is one federal policy that absolutely does benefit those with higher incomes over working-class Americans. The wealthy have long had access to many of the most lucrative investment funds, including private equity, private credit, crypto assets and real estate investment trusts. These assets have been legally closed off to the middle-class and lower-income retirement accounts. This has enabled higher-income Americans and "accredited investors" to earn higher returns on their money. Donald Trump...