Bernie Sanders' presidential campaign, which has been spending heavily on traditional broadcast media, just put money behind one of the buzziest forms of online advertising: sponsored content.
A post titled "We must end for-profit prisons" and bylined "By Bernie Sanders, Democratic candidate for President, US Senator from Vermont," was published today on Politico under a "Sponsored Story" label; the post ends with a "Paid for by Bernie 2016" line as well as a disclaimer from Politico that reads "The above column is sponsor-generated content from and paid for by Bernie 2016."