I'm trying to build a simple web application to display service coverage information worldwide. I have been using Datamaps/D3 to build the application. I downloaded the Natural Earth shapefiles for countries and for states/provinces. I am using GDAL and Topojson tools to get JSON data for the app.
The problem is that I would like to get a global map of countries with state/province (aka administrative) borders for the USA ONLY.
I have been trolling around the web for a few hours with no luck. I have downloaded QGIS and working through learning how to do this. But, I figured I would post something here as well.