And you won't, from anyone who's realistic about McCain's history.
It's one thing to promise to appoint conservative judges, but it's quite another to get a confirmation through a Democrat-controlled Senate. Given McCain's track record for compromise (the Gang of 14 comes to mind), and his avowed promise "to get things done" -- which one can logically presume to include, failing the first attempts, nominating judges with more liberal "bipartisan" credentials -- the promise loses validity.