Senate Majority Leader Mitch McConnell (R-KY) and Sen. Tim Kaine (D-VA) introduced legislation on Monday (May 20) that would raise the national minimum age to purchase tobacco products from 18 to 21. The legislation, Tobacco-Free Youth Act, is similar to other bipartisan bills introduced in recent months that aim to raise the minimum age of purchase to 21. The most recent of those is known as the Tobacco to 21 bill, which was introduced by Sens. Brian Schatz (D-HI), Todd...