WASHINGTON (AP) — President Donald Trump on Friday used his Twitter account to advance an unverified theory circulating among conservatives that the Justice Department planted a spy in his 2016 campaign and is now “out to frame him.” Trump’s early morning tweet seemed intended to undercut the ongoing Russia investigation by special counsel Robert Mueller, which he has repeatedly called a “witch hunt.” “Really bad stuff!” he tweeted. Last week, the National Review raised the question of a possible FBI spy on Trump’s campaign.