The campaign for a $243-million telephone users tax on the Feb. 5 ballot has amassed nearly $2.6 million, almost three-fourths of it from labor unions, according to campaign contribution reports filed Thursday.
Unions provided nearly $1.9 million to the Proposition S campaign, which is seeking to preserve a tax on cellular and land line calls that has been challenged repeatedly in court.
The size of the donations appalled foes of the tax, who said that city employee unions were rewarding politicians for giving them raises -- and ensuring that more will be granted in the future.
"This is the economics of special interests," said Walter Moore, who has been battling the measure. "You have a special interest that can make hundreds of millions of dollars by putting in $1 million or $2 million at City Hall."