CHICAGO (AP) — Illinois is considering proposals from five companies to build a health insurance exchange that would meet requirements of President Barack Obama's health law. An official from one of those companies says — whoever wins Tuesday's presidential election — many states will continue their plans for these marketplaces.

Exchanges are a cornerstone of Obama's health law, and Mitt Romney has expressed support for states setting up their own exchanges with more flexibility. That means many states will move forward with plans. That's the view of Brian Patt of Infosys Public Services.

Infosys is one of five companies bidding to design an Illinois exchange, a website where consumers would comparison shop for health insurance.