Don't forget that Eisenhower created the Interstate System [1] which was car based and heavily advertised for traveling for Americans, while also being a national security need for military transport.

Creating the interstate systems did kill trains but also greatly influenced where cities and economies sprang up. It also made the US a car culture and locked it in, which worked great for big areas of undeveloped land at the time, and allowed people to move around more freely.

I'd love a president or government in the US to do the same and make an electric car interstate system, basically just giving it to companies like Tesla or others with conditions. Basically start adding electric car charging stations and add an iteration to the interstates, make them self-driving capable and more.

Or a president or government policy to get gigabit broadband across the nation as a new baseline of digital transportation of data that will open up unforseen new products and markets.

[1] https://en.wikipedia.org/wiki/Interstate_Highway_System