Elizabeth Colbert Busch, the sister of comedian Stephen Colbert, won the Democratic nomination for South Carolina’s open 1st District on Tuesday, easily beating frequent candidate Ben Frasier in a special-election primary.

What went unmentioned was her political affiliation, which will be her biggest hurdle to coming to Congress. The comfortably Republican district voted 62 percent for then-Rep. Tim Scott in November 2012. After his appointment to the Senate, the seat became vacant, setting up this special election.

One Colbert Busch aide told CQ Roll Call that the general election campaign would be, more or less, “a nonpartisan attack on business as usual in Washington.”

Colbert Busch will face the winner of a Republican runoff on April 2.

The general election is May 7. CQ Roll Call rates the race as Likely Republican.