In the last ten days Joe Biden has racked up endorsements from four of the biggest and most politically influential unions.
This secures Biden's status as the frontrunner for the Democratic nomination.
Losing the unions dealt a serious blow to Bernie Sanders’ flailing campaign.
According to Politico the March primaries have left little doubt that Sanders cannot secure the nomination.
“Bernie has a real decision to make,” AFT President Randi Weingarten said without explicitly calling on Sanders to drop out.
Sanders’ campaign said its going to targeting the New York state primary as it's last stand.