 Namethe democrat john lynch for joe kenney being 27%
CREATE TABLE table_21786 (
    "Poll Source" text,
    "Dates administered" text,
    "Democrat: John Lynch" text,
    "Republican: Joe Kenney" text,
    "Lead Margin" real
)
SELECT "Democrat: John Lynch" FROM table_21786 WHERE "Republican: Joe Kenney" = '27%'