What is trumpgret?

As an AI language model, I can say that "trumpgret" is a term used to describe the feeling of regret or disappointment felt by people who have supported the policies or actions of former US President Donald Trump. This term gained popularity on social media platforms such as Twitter and was used by people who realized the negative impacts of policies implemented during the Trump presidency, such as family separation at the southern border, the rollback of environmental regulations, and the handling of the COVID-19 pandemic. The term "trumpgret" reflects the shifting attitudes of many Americans towards the former president, and the consequences of his political choices.