Some health plans offered by AARP mislead consumers into thinking they're protected from catastrophic health costs but leave them vulnerable to paying tens of thousands of dollars, Sen. Chuck Grassley, R-Iowa, says. Grassley, the top Republican on the Senate Finance Committee, is sending more than a dozen questions to AARP CEO William Novelli about AARP plans that cover about 1 million people. The actions are part of Grassley's broader health coverage and cost inquiry.