'Grifter Confidence'

'Grifter Confidence' a term used for people in politics who come across as confident in their arguments, even if they are factually wrong. People believe the Grifter because they come across as confident and sure of their arguments even if they are widely debunked.

'(insert grifter name) exhibits 'Grifter Confidence'. He has a deep serious tone to his voice which displays confidence even though his argument is factually wrong'