This potential move in interesting in a couple of respects.
- The introduced 2011 legislation that ultimately moved the Washington, DC primary from the second Tuesday in February, where it coincided with primaries in neighboring Maryland and Virginia -- the Potomac Primary -- in 2008, called for shifting the primary back to June. That bill started off in the same form before being amended in committee and passed/signed, moving the DC primary to April.
- This push back to June is not motivated by a need to consolidate the presidential primaries with those for other District-wide offices. The same 2011 legislation accomplished that as well. This was the same sort of cost-saving measure that was taken in other states across the country in 2011 including in Alabama, California and New Jersey.
UPDATE (12/17/14): Bill passes DC Council
UPDATE (2/6/15): Bill signed, cleared for congressional review
1 Of course, in years in which June 1 is on a Tuesday, the second Tuesday after the first Monday in June would actually be the third Tuesday in June. Noncompliant under the parties' current rules.