CREATE TABLE table_18134 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Results" TEXT, "Candidates" TEXT)

When was the first election in the district whose incumbent is Ron Kind?
SELECT MIN("First elected") FROM table_18134 WHERE "Incumbent" = 'Ron Kind'
SELECT MIN("First elected") FROM "table_18134" WHERE "Incumbent" = 'Ron Kind'