This piece outlines some of the challenges that the left needs to take very seriously as we enter the Presidential campiagn:
On a range of issues, Mr. Trump seems to be taking a page from the Sanders playbook, expressing a willingness to increase the minimum wage, suggesting that the wealthy may pay higher taxes than under his original proposal, attacking Mrs. Clinton from the left on national security and Wall Street, and making clear that his opposition to free trade will be a centerpiece of his general election campaign.
As Mr. Trump lays the groundwork for his likely showdown with Mrs. Clinton, he is staking out a series of populist positions that could help him woo working-class Democrats in November. But in doing so, he is exacerbating the trepidation some Republicans already feel about his candidacy at a moment when the party typically rallies to its nominee.
You can read the rest of this piece at: http://www.nytimes.com/2016/05/18/us/politics/donald-trump-bernie-sanders-campaign.html?_r=0