How do they know he endorsed the Sanders proposal instead of the one by Senator Udall?
The President didn't say either way.
There are several different amendments that have been proposed by members of Congress and outside groups.
I don't see why this article is jumping to the conclusion that Obama endorsed the Sanders proposal. I blame Jason Easley at politicususa.com for writing a misleading headline. This is really poor quality journalism.
The same guy went back to the well today with another similar article. Dumb.