CREATE TABLE table_28669 ("District" FLOAT, "Incumbent" TEXT, "Party" TEXT, "Elected" TEXT, "Status" TEXT, "2010 Candidates" TEXT)

What is the elected year when the party is democratic and the 2010 candidates is jason carter (d) unopposed?
SELECT "Elected" FROM table_28669 WHERE "Party" = 'Democratic' AND "2010 Candidates" = 'Jason Carter (D) unopposed'
SELECT "Elected" FROM "table_28669" WHERE "2010 Candidates" = 'Jason Carter (D) unopposed' AND "Party" = 'Democratic'