CREATE TABLE table_47385 ("Poll Source" TEXT, "Dates administered" TEXT, "Democrat: Brian Schweitzer" TEXT, "Republican: Roy Brown" TEXT, "Libertarian: Stan Jones" TEXT, "Lead Margin" FLOAT)

What is the percentage for Brown when the lead margin is 26?
SELECT "Republican: Roy Brown" FROM table_47385 WHERE "Lead Margin" = '26'
SELECT "Republican: Roy Brown" FROM "table_47385" WHERE "Lead Margin" = '26'