Trump is a ----------Pathological liar
Pathological lying, also known as mythomania (from Greek μυθομανία) and pseudologia fantastica (Latin for "fantastic pseudology"),
is a chronic behavior characterized by the habitual or compulsive tendency to lie. It involves a pervasive pattern of intentionally making false statements with the aim of deceiving others, sometimes without a clear or apparent reason. Individuals who engage in pathological lying often claim to be unaware of the motivations behind their lies.
Pathological lying - Wikipedia
by the way, it is a mental illness

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