Joe Biden won the Warren County Democratic convention on Sunday, defeating Bernie Sanders by a vote of 39 to 14 – a 74%-26% margin – in a county Sanders won four years ago.
Sanders carried Warren County in the 2016 New Jersey primary, defeating Hillary Clinton by 139 votes, 51%-49%.
Warren is the first county to formally announce that Biden would run on their organization line in the June 2 presidential primary.
This was Biden’s fourth consecutive victories in bids for county organization endorsements since Super Tuesday.
Biden won votes on Mercer, Burlington and Atlantic counties over the last six days.
Party leaders have still not decided whether New Jersey Democrats will have an open presidential primary. U.S. Senator Bob Menendez has proposed a plan to have no organization lines for that race.
The Menendez plan came at a time when some Democrats believed Biden was faltering and Bernie Sanders was surging, and there were still seven Democrats contending for the nomination.
Since Biden’s huge win in South Carolina, the field quickly winnowed to just two, although Tulsi Gabbard technically remains in the race.
In a ranked-choice vote in Mercer on Wednesday, Biden defeated Elizabeth Warren, 946 to 577, with 441 for Sanders.
On Thursday evening, hours after Warren withdrew, Biden defeated Bernie Sanders with 74% of the vote, 98 to 34 in Burlington County. One delegate voted not to endorse anyone.
Biden won 81% in Atlantic County on Sunday. He defeated Sanders by a 205 to 48 vote.
Party by-laws give the three Democratic county chairs — Janice Mironov of Mercer, Joseph Andl of Burlington and Michael Suleiman of Atlantic — the authority to determine which candidate, if any, gets the organization line.
Warren won the first-in-the-state presidential primary in February, taking Hunterdon County on the third ballot by four votes over Michael Bloomberg.
Clinton carried Warren County in her 2008 bid for the Democratic presidential nomination, defeating Barack Obama by a 55%-41% margin.