Bruce Springsteen sparks fan fury after backing Abdul El-Sayed in Michigan Senate race

has a message for Michigan voters — and some of his longtime fans aren't having it.

The rock legend faced criticism from some social media users after backing Democratic Senate candidate Abdul El-Sayed, prompting angry fans to accuse The Boss of crossing a political line.

Springsteen, who has never shied away from politics, took aim at President in his endorsement of El-Sayed, portraying the progressive candidate as a defender of American democracy.

"Dr. El-Sayed is a fighter for our American Constitution, hes a fighter for our American Democracy, and hes a fighter against the corrupt, lawless, and anti-American leadership currently in the White House. Thats why Im in his corner 100%. Bruce Springsteen," he penned on social media.

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Critics questioned why the New Jersey-born singer was endorsing El-Sayed, given controversies over the candidate's political associations and positions on Israel.

"Bruce Springsteen, the guy who spent 40 years cashing in on Born in the USA, finally posts after two years of silence just to call an elected American president corrupt, lawless, and anti-American while locking arms with Abdul El-Sayed, the same guy who campaigned with Hasan Piker (the streamer who said America deserved 9/11) and still cant shake the Muslim Brotherhood questions about his own family."

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Another commenter criticized the singer's political activism, writing, "The Boss isnt fighting for the Constitution. Hes just another rich coastal has-been who needs a new reason to hate the country that made him."

"Bruce Springsteen who performed at the concert for NY at MSG on 2001 after 9/11….. is now campaigning for a Muslim brotherhood sympathizer," another person wrote. "Did I not have this on my bingo card for today."

Another longtime fan expressed sadness and anger over what they viewed as Springsteen's failure to understand the impact of his endorsement on those who have long fought antisemitism.

"Shame on you. You are not educated to understand what your endorsement means to so many life long fans and good people that are fighting antisemitism and hatred for thousands of years. You are acting like an ignorant uneducated school child. You did this for what reason? This is so foolish. Im so sad., Im 59 years old.. Shame on me for thinking you were educated and smarter. Take the time to understand the other point of view."

However, not everyone was ready to turn on the rock icon.

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Springsteen's endorsement drew support from El-Sayed backers, including one self-described frequent concertgoer who accused critics of unfairly targeting the Democratic candidate.

"As a huge Springsteen fan, and veteran of over 50 different shows around the country, and a resident of Michigan, and supporter of Dr. Abdul El Sayed, I support this message 100%. I suspect that some of your Jewish f