On June 10, 2009, she became Miss California USA 2009 after Prejean was sacked by Donald Trump. Prejean had created controversy by saying marriage should be reserved for a man and a woman during the interview portion of the Miss USA 2009 pageant.
When asked about the controversy in 2009, Farrell, who is a Christian, stated that she believes that marriage is between a man and a woman but added "I don't think that I have the right or anybody has a right to tell somebody who they can or can't love. And I think that this is a civil rights issue. And I think that the right thing to do is let the voters decide."