Jewish leaders in Michigan are circulating an open letter urging Jewish Democrats and independents in the battleground state to sign their names in support of former Rep. Mike Rogers (R-MI) as he faces Abdul El-Sayed, the far-left Democratic nominee for Senate whose hostile positions on Israel have alarmed many Jewish voters.

The letter, which was obtained by Jewish Insider on Wednesday and has not yet been publicized, is led by Eric Bronstein, a Detroit businessman, among others identifying as Democrats and independents.

It came to light after a fundraiser for Rogers on Tuesday night hosted by three prominent Jewish Democratic bundlers in Michigan who are likewise alarmed by El-Sayed’s candidacy. The growing efforts among Jewish Democrats to rally support for Rogers in the key Senate race illustrate the degree to which El-Sayed has alienated a sizable and politically active swing voting bloc in what is expected to be a close election.