For the scenes in Congress, the production crew built a replica of a Senate chamber at a studio in Queens.
To prepare for his scenes during Tom's testimony, actor Matthew Macfadyen watched the House testimony of Michael Cohen, former attorney to President Donald Trump, and his questioning by Rep. Elijah Cummings.
The baseball cap Kendall is wearing while the family are gathered watching the whistleblower on TV is from the Gleneagles Hotel in Perthshire, Scotland. This is the hotel that was used as the location for where the family were staying in the previous episode "Dundee".
The scenes that feature Roman's trip to meet investors set in Turkey were actually filmed in Croatia.