CREATE TABLE table_71476 ("Name" TEXT, "Position" TEXT, "Party" TEXT, "Took office" FLOAT, "Up for reelection" FLOAT)

What was the earliest year that Yvette Alexander took office and was up for reelection after 2016?
SELECT MIN("Took office") FROM table_71476 WHERE "Name" = 'yvette alexander' AND "Up for reelection" > '2016'
SELECT MIN("Took office") FROM "table_71476" WHERE "Name" = 'yvette alexander' AND "Up for reelection" > '2016'