ANN ARBOR, Mich. -

Gov. Rick Snyder said he's weighing many factors as he considers whether Michigan should expand its Medicaid program.

The national health care law will let states insure residents with income up to 138 percent of the poverty line, rather than 100 percent, as it does now.

That could mean coverage for 500,000 more Michigan residents. The state's Medicaid program currently covers about 1.9 million people, most of them children, seniors and people with disabilities.

Snyder told The Associated Press in a Friday interview that expanding coverage could save the state money.

But he said he also has to look at how much the state must spend once the federal government drops from paying 100 percent of the cost of those added to the program to 90 percent by 2020.