Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: Washington (CNN) President Barack Obama, as his tenure draws to a close, is deploying his legal authority in a last-minute bid to cement the areas of his legacy threatened by Donald Trump's incoming administration. Obama has tasked his staff with locating as many areas as possible where his top agenda items could be calcified and protected from Trump's wrecking ball, according to officials. He's placing an indefinite ban on oil drilling in huge swaths of the Arctic and Atlantic oceans, wary of a successor who promised a boost in US energy production. He's advised lawmakers of plans to transfer almost one-third of the remaining population at Guantanamo Bay to other countries, despite Trump's vow to fill up the prison with "bad dudes."It's expected Trump will seek to peel back some of Obama's movesObama is attempting to solidify his legacy 
 Question:Obama himself acknowledged on the campaign trail this fall that a _ presidency would bode poorly for his top achievements, including his work on climate and global diplomacy.

Donald Trump