I think the Iran Deal's an important one. I'm on the fence on the issue- on the one hand, there are legitimate arguments that the deal wasn't doing enough to make sure Iran wasn't developing nukes. On the other hand, there are legitimate arguments that it was definitely doing more than without a deal. And there are actually arguments that the deal was harming the Iranian regime more than without it. So yeah, purely on the fence, idk what to think.
This one. And some economic issues. Environmental issues as well.