First, it should be someone you know VERY very well. Someone you are SURE you know their judicial philosophy. NOT the veneer, but the real person.
Second, given the political climate where a true conservativce would NEVER get confirmed, or even make it thru the Judiciary Committee, you'd pick someone no one else knows.
Third, you pick a minority or a woman, that the Dems would look like hypocrites for opposting, given they've painted you as anti-minority and anti-woman.
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Now, who fits that profile?