Which preposition to use with protectionist

as Occurrences 1%

The lack of money and the poverty of the newer country are looked upon by the protectionist as due to the importation of goods.

of Occurrences 1%

Though there were conflicts between members from manufacturing districts and those from agricultural constituencies, and though the salt protectionists of New York had some difficulty in carrying their point, the contention did not follow sectional lines.

to Occurrences 1%

Conservative as he was, and opposed to all agitations for religious or political change even under the name of "reform," the fiery eloquence of O'Connell and the menacing power of the Catholic Association forced upon him the conviction of the necessity of Catholic emancipation, as the cold reasoning of Richard Cobden afterward turned him from a protectionist to a free-trader.

Which preposition to use with  protectionist