The reason the head of the DNC cannot tell the difference is because in 2015 the Democrat party has moved so far to the left, they are now fully immersed socialists.
Remember the “blue dog democrats”? It might seem like a lifetime ago, but the “blue dogs” were the democrat candidates who won election victory in 2006 and tipped the scales of power to Nancy Pelosi.
Less than four years later (two House election cycles), and due entirely to the socialist policies enacted by Nancy Pelosi and company, the “blue dog dems” were totally wiped out in 2010.
A cluster of Blue Dogs pictured here prior to the 2010 election that wiped them out.