Sen. Edward Kennedy (D-Mass.) fired off a strongly worded letter to Supreme Court nominee Samuel Alito,  challenging him for not recusing himself from a 2002 case involving Vanguard, where Alito has a six-figure investment, the Associated Press reports.

"You have given at least six different answers to the basic question of why you not only sat on the case, but presided, signed orders and joined an opinion upholding Vanguard's position in that case," Kennedy wrote. Getting to the bottom of Alito's real reason for not recusing himself, Kennedy said, would ensure a "less confrontational confirmation process. I urge you to provide prompt and clear written answers to the many remaining questions about your failure to recuse yourself."

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