House Minority Whip Eric Cantor promised Capitol Hill protesters on Friday that not one Republican would approve the Democrats' health-care bill. But Cantor's vow of unanimity slipped Saturday night when the final vote tally, 220 to 215 in support of the bill, revealed Rep. Anh (Joseph) Cao, a Republican from Louisiana, cast a yes vote.

His reason for being the lone GOP nod? "I have always said that I would put aside partisan wrangling to do the business of the people. My vote tonight was based on my priority of doing what is best for my constituents," he said in a statement quickly released by his office. Earlier in the evening, he also supported a controversial amendment (which also passed) from Democratic Rep. Bart Stupak prohibiting any federal money from funding abortion.