The lesson for all politicians and anyone else making statements that could be embarrassing is simple: in this era of access to incredibly good audio and video recorders by everyone that carry a smartphone or tablet, it would probably be wise to be very careful not to make off-the-cuff candid remarks, especially if you are running for president.
The proliferation of smartphones and tablets that became very useful mobile recorders for images, audio and video has exponentially accelerated the structured data creation.