SELECT "Republican" FROM table_29240 WHERE "D\u2013R spread" = '-14.1%'
What is the percentage of republican voters in which the d-r spread is -14.1%?
CREATE TABLE table_29240 (
    "City" text,
    "Population" real,
    "Registered voters" text,
    "Democratic" text,
    "Republican" text,
    "D\u2013R spread" text,
    "Other" text,
    "No party preference" text
)