The administration has already spent $3.8 billion creating the system for Americans and business to buy Obamacare health insurance, and that figure is likely to top $5 billion when every participating state comes online, according to federal figures.

California has received the most so far, some $910 million in grants to be used to build the state’s “health insurance marketplace,” the so-called “exchanges” where citizens and businesses will be able to compare and choose their preferred coverage as soon as October.