if its done respectfully, its good for the ultimate examination of the candidate. I should have said nominating a candidate though, of course the party should support their nomination once its done.
I dont see any difference between Mccain n Bush's policy. If you want another Bush as a president then go ahead. This country has gone down already and it will keep sinking if majority keeps voting for republicans like Mccain. Troops will not come back home anytime soon, more wars (most likely with Iran), struggling economy.