Stuparrogance
The amalgamation of stupidity and arrogance. Where bad decisions aren't quite narcissistic, and yet inflated self worth and compromised decision making--sometimes the former affecting the latter--come together to result in blunders of near historic proportions
Ivanka Trump using a personal email account as a Senior Aid to a President, her father, who feels that his opponent should be locked up for previously acting in kind, demonstrated stuparrogance of epic proportions on Ms. Trump's part.