Trump tweeted Friday that his fired FBI Director James Comey better hope there aren't any tapes of their conversations, which critics quickly noted only further links him to Nixonian practices.

But it's not illegal for a President to record conversations: After Watergate, there weren't any policies added to limit presidents from recording, per Politifact. Plus, "one-party consent" is all that's needed to tape a conversation lawfully in Washington, D.C.

And presidential taping is more common than you might think: The history of presidents taping conversations isn't exclusive to Nixon.

The Washington Post

,

Politifact

, and

NYDaily News

have consolidated the details on which presidents have recorded conversations throughout history: