6 million kronor of LO's membership fees go directly to the Social Democrats every year.
Now, LO's chairman Johan Lindholm opens up in the SVT program " 30 minutes " about the possibility of withdrawing the support.
I, and many with me, can think that it may be outdated. And we will of course look into it, he says.
Six out of ten LO members do not vote for the S and, according to Lindholm, are frustrated that a part of the union fee automatically goes to a party they do not vote for themselves.
The Social Democrats' party secretary Tobias Baudin tells TT that it is unexpected to receive such messages now when "the Social Democrats are under attack".
The Sweden Democrats want to stop not only us as a party but the entire trade union movement. Our ambition is then to cooperate even more with LO. The government has just presented a worker-hostile budget that benefits the richest. It is more important than ever to cooperate with the trade union movement, he says.