The content originally appeared on: CNN (CNN)As Donald Trump prepares to potentially run for his old office in 2024, it's worth looking at what his four years as president - and his yearlong campaign to undermine the 2020 election results - meant for the country. The answer: nothing good. Consider a new study from Transparency International, an independent nonprofit group that, according to its website, 'work[s] to expose the systems and networks that enable corruption to thrive, demanding greater transparency […]