Yup. There's no ban on political content across the board. Which is why I specifically said "politically charged articles". I'm in no way suggesting flagging all political content. If you think I am, please let me know what gives you that impression and I'll work to be clearer in the future.

From the guidelines:

Off-Topic: Most stories about politics, or crime, or sports, unless they're evidence of some interesting new phenomenon

Please avoid introducing classic flamewar topics unless you have something genuinely new to say about them.

I think flagging politically charged submissions—particularly those that have shown themselves to lead to largely repetitive non-constructive flame wars—is consistent with the guidelines. That second quote is from the comment guidelines, but I think it's fair to apply the same standard to submissions as well.

Edit to add: Are there recent topics on HN that you think have been unnecessarily flagged? Some that you've found particularly useful?

Political content worth talking about pretty much by definition is politically charged, or so it seems to me. If it isn't, then what is there to say?