The Roth IRA was invented by Congress to incentivize middle-class retirement savings. ProPublica’s Justin Elliott explains how venture capitalist Peter Thiel ended up with $5 billion in his.Transcript at vox.com/todayexplained.Support Today, Explained by making a financial contribution to Vox! bit.ly/givepodcasts. Learn more about your ad choices. Visit podcastchoices.com/adchoices