yeah, it's been a while, but what's frightening me most about him as of late is his foreign policy ideas.
He's refusing to negotiate with foreign leaders.
He wants to eject russia from the G8 and include India and Brazil (some object to ignoring China, but they don't qualify)
He wants to create a league of democratic nations to deal with the middle east.
The whole iranian thing is obviously contingent on whether or not you believe they are working on nuclear weapons, so I'll not comment on the cons I see there.
The President of our United States has very little impact on domestic policy, which is why I tend to vote mainly on foreign policy matters in that office. These are some huge issues I have regarding this potential president's policies.