Strange how Article II, Section 2, Clause 2, says "provided two thirds of the Senators present concur" to ratify a treaty but makes no such distinction regarding "Ambassadors, other public Ministers and Consuls, Judges of the supreme Court, and all other Officers of the United States, whose Appointments are not herein otherwise provided for, and which shall be established by Law". It would seem "The Founders" didn't feel that the majority needed to be as restrained regarding nominations as they wanted them with treaties.
Why shouldn't it take 60 or 67 votes to get a lifetime appointment as a federal judge?
Because that's not the way "The Founders" decided the process should work when they set up the constitutional and governmental structures that pertain to this issue.
What chucklehead.