Wow, even that was a lie.

https://www.politifact.com/article/2019/sep/11/fact-checking-mixed-bag-accusations-trump-and-911/

"40 Wall Street actually was the second-tallest building in downtown Manhattan, and it was actually, before the World Trade Center, was the tallest — and then, when they built the World Trade Center, it became known as the second tallest. And now it’s the tallest," Trump said.

In actuality, once the Twin Towers were decimated, the 71-story Trump Building at 40 Wall Street was the second-tallest building still standing in Lower Manhattan, according to the Washington Post. It was 25 feet shorter than the building at 70 Pine Street. That’s not to say that 40 Wall Street has never been the tallest in Lower Manhattan: It was for two years in the 1930s, before Trump owned it.

Currently, Trump’s building on 40 Wall Street is the 32nd-tallest building either erected or under development in New York City.