Who is Candy Crowley? The short(ish) answer is she's an US news journalist and CNN's chief political correspondent. The longer answer is she's the journalist chosen to moderate the Presidential Debates and she's in hot water right now over her commitment to doing her job properly.
According to Mark Halperin in Time magazine, both Obama and Romney have submitted official complaints about Crowley's stated intention to ask follow up questions and press for answers - in other words, make their lives slightly more difficult
According to the internet, Crowley is also a vegetarian, a mother-of-four, who was a 'stay-at-home mom' for six years. She was born in Kalamazoo, Michigan and is a fan of transcendental meditation. So now you know.