CHICAGO (AP) — For the more than 30 states that defaulted to the federal government under President Barack Obama's health care law, time may be running out to decide whether to create their own state-run insurance exchanges. The law's disastrous rollout and lingering unpopularity have made it risky to raise the issue in a tense election year despite Obama's announcement Thursday that 8 million Americans have signed up for subsidized private insurance. In Illinois, Republicans are expected to exploit the health law's problems in election campaigns against incumbent Democrats in Congress, including Dick Durbin, the No.