President Trump has faced backlash for his $300 million ballroom plans. But the White House East Wing has undergone several changes since it was added to the presidential complex as the East Terrace soon after President Theodore Roosevelt took office in 1902.

The big picture: President Franklin D. Roosevelt significantly rebuilt and expanded the East Wing in 1942, which the White House Historical Association notes "was highly controversial due to its timing during wartime." It's since served as office space for the first lady and her staff.

Go deeper: Trump: "We had to take down the existing" White House East Wing structure

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