You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
United_States_presidential_election,_2004

Context:
A ballot initiative in Colorado, known as Amendment 36, would have changed the way in which the state apportions its electoral votes. Rather than assigning all 9 of the state's electors to the candidate with a plurality of popular votes, under the amendment Colorado would have assigned presidential electors proportionally to the statewide vote count, which would be a unique system (Nebraska and Maine assign electoral votes based on vote totals within each congressional district). Detractors claimed that this splitting would diminish Colorado's influence in the Electoral College, and the amendment ultimately failed, receiving only 34% of the vote.

Question:
Which two states designated their assigned votes based on their districts?

Nebraska and Maine assign electoral votes based on vote totals within each congressional district)