Imagine, if you will, that Sonia Sotomayor was unknown to us in image, race, age or gender.
Placing her in a sealed room with only audio available, let the Senate ask questions about the candidate's qualifications. Ask about everything: Judicial philosophy, courtroom persona, important written opinions, role models, positions on controversial topics, and everything under the Sun.
In the information that you hear: decide is this a Judge that should sit on the US Supreme Court Bench for the next 20 to 35 years? Is this a Judge that can deliberate and form an opinion only after thorough research and debate among peers? Is this a Judge that can easily associate with the different views on the current and future panel?
If the answers to these and the answers as specifically weigh on Constitutional jurisprudence show a solid figure, able to distinguish easily between various lines of reasoning and logic and at the same time able to ask appropriate searing questions of both appellant and respondent, then the Judge should be confirmed. Is the Judge well able to articulate excellent written opinions, thoroughly researched and weighing both sides of the usually close issues in question, then the Judge should be confirmed.
If not, then the Senate must otherwise reject the candidate. The senate must probe deep enough to find these answers out. The hearing itself can be a distraction to the truth if partisanship prevails.
Here is a call to decorum and dignity throughout the process.