As legal pot sales begin in Washington state today, in Washington DC, a voter initiative that would decriminalize pot possession is making its way toward the November ballot.

Advocates for a ballot initiative that would decriminalize marijuana possession in DC announced yesterday that they had collected 57,000 signatures, more than twice the number needed to get the Initiative 71 on the ballot this fall. But Congress could still step in to block the measure.

Aaron Davis, a reporter with The Washington Post, joins Take Two to explain more about Initiative 71 and the debate over marijuana legalization in DC.