As v8power alluded, "if those walls could talk" or "to have been a fly on the wall," the idioms are referring to the idea of hearing what goes on behind close doors. What could be "in the walls"? Wire taps. Listening devices. Recordings. Perhaps even cameras? Makes me think of scenes from spy/crime thriller shows and movies, most recently the movie Bad Times at the El Royale. Interesting story to the movie possibly being based on a real hotel and real events. Who could put said devices there? FBI. CIA. Black hats. White hats. Presidents. Past presidents? Could Trump/MIL have bugged the Oval/WH to catch the 🥔 and the occupiers openly discussing treason, election theft, etc? These people are stupid, after all.

Tequila hmmm.... Mexican alcohol. Maybe referring to southern border crisis? Empty bottles. Drunk? Drunk on power? Tequila sunrise is a cocktail made with orange juice 🍊 man.... Garnished with a red cherry. Idk, reaching here. v8power is probably right on the dead Marines euphemism