CREATE TABLE table_name_33 (party VARCHAR, opinion_research_centre__opc_ VARCHAR)

What is Party, when Opinion Research Centre (OPC) is 1.5%?
SELECT party FROM table_name_33 WHERE opinion_research_centre__opc_ = "1.5%"
SELECT "party" FROM "table_name_33" WHERE "1.5%" = "opinion_research_centre__opc_"