President-elect Donald Trump's victory on Election Day has put some of President Barack Obama's hallmark achievements in jeopardy.
Trump has come out strongly against almost all of the top initiatives Obama spent eight years working on — the Asia pivot, the Trans-Pacific Partnership trade pact, Obamacare, and the Iran nuclear deal — and they're fragile enough that Trump could reverse course fairly easily.
"You have an outsider president being replaced by the most outsider candidate ever elected," Ian Bremmer, a geopolitical analyst and president of the Eurasia Group, told Business Insider via email.
"There's nothing like one upsmanship, big league, to destroy your legacy."
Donald Trump could erase Obama's legacy almost as soon as he takes office