There is an interesting interview in Politico with Barack Obama from a week before the Iowa caucuses, talking about the 2016 election and what he thinks about Hillary Clinton and Bernie Sanders:
Bernie came in with the luxury of being a complete long shot and just letting loose. I think Hillary came in with the both privilege — and burden — of being perceived as the front-runner. … You’re always looking at the bright, shiny object that people haven’t seen before — that’s a disadvantage to her.
And what he thinks of Donald Trump and the Republican party:
You think about it: When I ran against John McCain, John McCain and I had real differences, sharp differences, but John McCain didn’t deny climate science. John McCain didn’t call for banning Muslims from the United States. … [The] Republican vision has moved not just to the right, but has moved to a place that is unrecognizable.
It’s a good article, well worth a read.