What is the party when 2010 candidates is gloria butler (d) unopposed?
CREATE TABLE table_28667 (
    "District" real,
    "Incumbent" text,
    "Party" text,
    "Elected" text,
    "Status" text,
    "2010 Candidates" text
)
SELECT "Party" FROM table_28667 WHERE "2010 Candidates" = 'Gloria Butler (D) unopposed'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the party when 2010 candidates is gloria butler (d) unopposed? ### Input: CREATE TABLE table_28667 (
    "District" real,
    "Incumbent" text,
    "Party" text,
    "Elected" text,
    "Status" text,
    "2010 Candidates" text
) ### Response: SELECT "Party" FROM table_28667 WHERE "2010 Candidates" = 'Gloria Butler (D) unopposed'