Biden's latest stumble comes days after some questioned why a "watch your step" sign was spotted on the stairs leading up to Air Force One during Biden's arrival in the U.K. on Sunday night. Biden ...

Some U.S. embassies in European nations are taking to social media with pointed warnings to would-be visitors: Watch your step. Embassies in at least 17 countries have put up posts featuring ...

The White House did not immediately respond to a request for comment. A ‘watch your step’ sign was spotted on Air Force One as Joe Biden arrived in the UK earlier this week. (Sky News UK) ...