Controversial articles are usually tagged as such on their talk pages. For example, see the talk page for the Donald Trump article: https://en.wikipedia.org/wi

Controversial articles are usually tagged as such on their talk pages. For example, see the talk page for the Donald Trump article: https://en.wikipedia.org/wiki/Talk:Donald_Trump https://en.wikipedia.org/wiki/Talk:Donald_Trump Note the banner that says "The subject of this article is controversial and content may be in dispute." Articles in highly controversial areas (such as American politics and the Arab-Israeli conflict) are subject to additional restrictions meant to encourage discussion and reduce editing disputes. On these pages (including Talk:Donald Trump), you'll see a "Warning: Active arbitration remedies" banner with the details.