the bowing is not a sign of respect or disrespect. It is sign of unprofessionalism for the president de-briefing team. They should explain to the president what behavior is appropriate. In diplomatic languagethe bowing is disrespectful to your own country. But I do not think it is big deal, everybody understands the president does not have experience yet.

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Слaбый пол сильнее сильного, в силу слaбости сильного полa к слaбому