(POLITICO) The United Nations News Centre — the official U.N. news service — tweeted, then quickly pulled, a post that called for "8 million Americans abroad" to "stop Trump."

The tweet, published at 9:14 p.m. ET on Thursday, urged American expats to share a voter registration tool on the website of the activist organization Avaaz that states, "U.S. Citizens abroad could defeat Trump ... if they voted."

The Web page, titled "The October surprise that will end Trump," allows users to sign up for help registering to vote in the Nov. 8 presidential election and encourages them enlist their friends as well.

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