Arnold as President -

He would have been incredible in some ways, whatever he wanted to do, he would have gotten it done
Can you imagine him playing mind games with other world leaders. or members of congress ?

I think his Presidency would have definitely been one for the history books - the scandals, what if's etc.... that probably would have been associated with him
I think he would have been center- left on his foreign relations with other countries, don't see him being like Reagan at all, more like JFK