Dear teachers,Where once the union had acquiesced to the prejudices of its English-speaking members by supporting the imposition of an alien tax on immigrant workers, after 1897 the United Mine Workers make a determined effort to enlist Italians and Slavs in its ranks.
The quote is taken from my textbook. Now I just want to know whether I can use in support of to substitute for by supporting without changing its meaning, because , to me, they are possibly interchangeable, but I am not sure if there is semantic nuance between them. Could you kindly clarify it to me? Thanks.