Bidemptori remorsus

The feeling of regret felt by Joe Biden voters (the highest support in American electoral history!) after seeing his abysmal performance. A portmanteau combining the Latin emptori remorsus (buyer's remorse) and the last name of Joseph Robinette Biden.

Man! I voted against Bad Orange Man in 2020 but now all I'm feeling is Bidemptori remorsus!

I thought Biden would be a better president than Trump but now it's all Bidemptori remorsus after that abysmal first year!