(CNN) Larry Lindsey, the national economic council director under former President George W. Bush, delivered a presentation on US-China trade talks to senior House Republicans on Tuesday and said that as part of his analysis of the talks he enlisted the services of two psychiatrists to analyze President Donald Trump and Chinese President Xi Jinping, according to two sources.

In that analysis, Trump was rated as a "10-out-of-10 narcissist" who doesn't have the capacity for long-term strategic ideals or goals, which Lindsey attributed to Trump's upbringing, the sources said.

That came at the beginning of the presentation as Lindsey was trying to set the stage for his description of how the talks were playing out. The description was about two minutes of a 45-minute presentation "and certainly turned some heads," one source said.

Tensions between the US and China are running high amid an escalating trade war between the two major world powers. On Monday, China announced tariffs on $60 billion in US exports in retaliation for Trump's moves last week to hike existing tariffs imposed last year on Chinese goods -- and to start the process of adding duties to almost everything else China sends to the US. Trump also said on Monday that he will meet with Xi at the G20 summit next month.

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