As mayor of NYC Rudy had to have made some concessions in his philosophy in order to win. I'll believe if Rudy runs he'll move more to the right and say that abortion and gay rights are states' issues. He knows he cannot win without the conservative base. I'm not a huge fan of him but he's very good at articulating positions so succinctly that even die-hard libs will nod their heads vigorously. Voting for him over Hillary is a no-brainer.
Rudi Giuilani will never get my vote for POTUS. Period. I don't vote for liberals, even if they have an "R" next to their name on the ballot. Could never vote for the liberal Republican Governor of Kalifornia either. I seriously doubt RudiG would get the GOP nomination. If he did, conservatives would leave the GOP in droves. In my book, there is little difference between a GOP liberal and a liberal Democrat. In that regard, party affillation has nothing to do with political philosophy. Some consider RudiG to be a Scoop Jackson/JFK Democrat. From my POV, all three men fall into the liberal catagory. None fall into the catagory of being a Reagan conservative.