Barack Obama raised more than $66 million in August, besting his past fundraising record and pulling in the best monthly tally in US political history, says an aide. Topping February's $55 million, the take "demonstrates how the increasingly heated, nasty race has energized Obama's fundraising," writes Ben Smith in Politico. The campaign also added 500,000 new donors during the month. John McCain raised $47 million in August. (More Barack Obama stories.)