Pauline Hanson, former leader of Australia's One Nation political party, did this in Australia. Her party did not win, but it took enough votes from the Labour Party to force them to take on illegal immigration before the last election.
Anyone following the news in Australia since last August knows that Australia has played hardball with illegal freeloaders arriving in boats on Australia's shores. She basically forced a major political party to adopt the anti-illegal-immigrant issue for their platform.
Le camp des saints incarnate