But Democrats say Republicans are being shortsighted and that if more poor people get health insurance, the burden on states and the federal government will be reduced in the long term.
Some "seem to be using this opportunity to scapegoat Medicaid because the bottom line is some people don't like this law," Rep. Lois Capps, D-Calif., said.
Even as provisions of the new health care law roll out, it's future remains unclear. Obama threw his support behind a bipartisan Senate bill Monday that would allow states to opt out of requirements of the health care law earlier than previously allowed, as long as they meet certain criteria. This is the second major change in the law that the president has endorsed.
The president last year said he would consider slashing a requirement in the health care law that some say puts onerous reporting requirements on small businesses.
But the public is still divided about what the law means for them. Four in 10 Americans back repeal, according to a Kaiser poll conducted in early February. Three in 10 support an expansion of the law and two in 10 say they want to see it implemented in its existing form.