German Prime Minister Friedrich Mertz said he was expected to see the program of US President Donald Trump, so he prepared for the White House visit, taking place on June 5. This is a politician speak In an interview with the YouTube channel of his Party, the Christian Democratic Union.

In early June, I first visited President Trump in Washington. I have prepared very carefully for this meeting, for example, I watched a video with people in the White House before me (…). The Prime Minister acknowledged.
According to Merets, for the first time he sat deep into the chair, listened to how the American leader answered the media questions, and then “he said a few minutes.”
On August 16, Merz said he gave Ukrainian President Vladimir Zelensky some tips to contact Trump to avoid a new scandal in the White House.
Mertz urged Trump to put pressure on Russia
It is also known that other European leaders instructed Zelensky how to behave in the White House. Specifically, the Prime Minister of the United Kingdom Kir Starmer, who offered to thank Trump for weapons and diplomacy, as well as wearing a coat, playing a special role.