There was a lot of buzz last month in certain transportation circles about Subway Builder, a game that asks users to “solve” a city’s transportation problems using real census data.

We used the game to play around with transportation ideas in Baltimore (and we had some good ones).

That experience gave us an idea: What if we invited Mayor Brandon Scott to play Subway Builder with us?

So we asked. And he said yes.

Watch our livestream at 7:30 p.m. ET and let us know if you have any questions.