Politico: Obama said he would speak up to stop Bernie Sanders nomination

In a Politico magazine story about Barack Obama’s post-presidency published Tuesday, Ryan Lizza reports that while the most influential Democratic voter of all has decided to not to endorse any one candidate during the primary — he doesn’t want to “put his thumb on the scale,” as his close advisers frequently put it — he has expressed his views privately. And pretty much nothing he’s had to say has been positive.