A narrow door for the health exchange

Sen. Claire McCaskill discussed health care reform on

This Week with George Stephanopolous

, mentioning her support for a public option on a proposed health insurance exchange. The measure isn’t a government takeover of health insurance, she said.

“Keep in mind, not everybody can even go to this exchange and buy insurance with any kind of subsidy. This is going to be a fairly limited number of people — 25 million to 30 million are the estimates — that would even be on this insurance exchange,” she said. “By and large, most of this country is going to continue to get their health insurance through their employer.”

McCaskill was correct; read our reporting on

who is allowed into the health care exchange

.