That's true. Medicaid programs are run by the states to finance healthcare for the poor. Each state sets up the criteria for who qualifies. In some states, just about all very poor people can get it, while, in other states, only certain groups of poor can get it.

Medicare is operated by the federal government. The rules for getting on Medicare are the same all over the country. It's mainly for people over 65 and for the disabled. (The disabled must be on disability for 2 years before being eligible.)

Some people qualify for both Medicaid and Medicare. Some get just one or the other. Some people who are on Medicaid get all Medicaid benefits, while some only get partial benefits.

In some states, a person on disability can get Medicaid during the two years that they are waiting for Medicare. In some states, the can't.