If an election can turn on a sentence, this could be the one: “You don't need papers for voting.” On Thursday night, Francine Busby, the Democratic candidate for the 50th Congressional District, was speaking before a largely Latino crowd in Escondido when she uttered those words. She said yesterday she simply misspoke. But someone taped it and a recording began circulating yesterday. After she made that statement at the meeting, Busby immediately said: “You don't need to be a registered voter to help (the campaign).” She said that subsequent statement was to clarify what she meant. The recording, which was...