Why the Midwest may be Bernie Sanders’ last stand

The middle of the country could prove the end of the road for Sen. Bernie Sanders.

The Midwestern states that begin voting Tuesday with primaries in Missouri and Michigan represent the Vermont independent’s best — and possibly last — chance to regain his footing in the Democratic presidential race after former Vice President Joe Biden reestablished himself as the front-runner with commanding Super Tuesday victories last week. CONT.

Ronald Brownstein, CNN