If Biden’s 51%-27% lead in the poll, done by EPIC-MRA for the Free Press and its media partners, holds, it would guarantee him a signature victory in Michigan – a battleground state that helped President Donald Trump win the White House four years ago. It could also starve Sanders’ formerly front-running campaign of delegates needed for the nomination and call into question how long his effort can remain viable.

“Something happened on Super Tuesday with (other) candidates getting out and people are all of a sudden questioning Bernie’s positions on issues,” said Bernie Porn, pollster for Lansing-based EPIC-MRA, which conducted the survey of 400 likely Democratic primary voters between Wednesday and Friday. “If anything, it may be low in terms of the percentage that Biden may get.”