The Washington Post has a profile of Preet Bharara:
Last year during an office banquet, he insulted federal judge Naomi Reice Buchwald after she ruled against his office on a "hearsay" issue that led to an innocent verdict. Bharara told the dinner audience that what he was about to say was "hearsay" and would "not be admissible" – and then called Buchwald "the worst federal judge" he'd ever come across.