President Donald Trump has demolished the East Wing of the White House to make way for his planned $300 million ballroom.

From start to finish, it only took a few days to destroy the more than century-old structure, which was built in 1902 and substantially renovated and expanded in 1942. As of Thursday, the whole thing is gone. This has, understandably, inspired some questions. High on the list: Is this legal?

Vox collected a few of those questions below, and took our best swing at answering them. Here’s what we know:

Why is this happening?

Trump wants a ballroom on the White House campus, part of his campaign to gradually Mar-a-Lagoify the People’s House (previous highlights including paving over the historic Rose Garden with a patio that he’s dubbed the Rose Garden Club, gilding the Oval Office from floor to ceiling, and installing a pair of 88-foot flagpoles on either lawn of the White House).

All of those changes bring the White House closer to the aesthetic of Trump’s beachside Florida club. In 2006, for example, he fought the town of Palm Beach over his decision to erect a similarly sized 80-foot flagpole at Mar-a-Lago.

The ballroom in particular is a longtime fixation of Trump’s, one that predates his time in office. In 2010, he reportedly reached out to the Obama White House about building a similar structure, an offer that ultimately went nowhere.

Did we know this was going to happen?

By and large, no. The official White House announcement of the ballroom project, in July, did let on that the East Wing might be in trouble, writing, “The site of the new ballroom will be where the small, heavily changed, and reconstructed East Wing currently sits.” But Trump himself

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