Has any other foreign leader ever been allowed to speak in that building?

It's not all that common, but it's happened about 100 times, I believe.

https://www.politico.com/news/2022/12/21/zelenskyy-address-congress-churchill-00075087

Here's a list of them; https://history.house.gov/Institution/Foreign-Leaders/Joint-Sessions/

Has any other foreign leader ever been allowed to speak in that building?

It's not all that common, but it's happened about 100 times, I believe. The most recent was when the Republicans invited Netanyahu in 2015 without notifying Obama's administration first.

https://www.politico.com/news/2022/12/21/zelenskyy-address-congress-churchill-00075087

Here's a list of them; https://history.house.gov/Institution/Foreign-Leaders/Joint-Sessions/

Has any other foreign leader ever been allowed to speak in that building?

It's not all that common, but it's happened about 100 times, I believe. The most recent was when the Republicans invited Netanyahu in 2015 without notifying Obama's administration first.

https://www.politico.com/news/2022/12/21/zelenskyy-address-congress-churchill-00075087

Has any other foreign leader ever been allowed to speak in that building?

It's not all that common, but it's happened about 10 times, I believe. The most recent was when the Republicans invited Netanyahu in 2015 without notifying Obama's administration first.

https://www.politico.com/news/2022/12/21/zelenskyy-address-congress-churchill-00075087