Sanders points to new momentum after Michigan victory

[...] Hillary Clinton's campaign pointed to her growing delegate lead and predicted it would soon have an "insurmountable" advantage as the nomination fight looked to drag deep into spring.

Sanders' campaign manager Jeff Weaver called Michigan a "game-changer" in the Democratic presidential contest and said it would bode well for the Vermont senator in primaries next week in Ohio, Illinois and Missouri.

Clinton campaign manager Robby Mook countered that despite the loss in Michigan, where polls showed Clinton with a comfortable lead in recent weeks, the contours of the race had not changed.

Sanders was energized by his narrow win in Michigan, where he warned that "disastrous" trade deals supported by Clinton had led to job loss and an erosion of the state's famed auto industry and manufacturing base.