Sen. Elizabeth Warren says she’s skeptical that Bitcoin will prove to be a reliable hedge against inflation over the long run, a key reason some investors choose to own it -- and why she’s warning for tighter regulation, suggesting it will help root out “snake oil salesmen” and may shore up the confidence of investors in the nascent asset class. And, Warren’s tax proposal on the wealth of ultra-millionaires and billionaires garnered a lot of attention from Wall Street during the early days of the 2020 Presidential campaign. In a striking - and at times fiery - exchange, billionaire and Home Depot founder Ken Langone joins the Squawk Box gang to discuss the possible policy’s impact on the richest of rich Americans.