In a huge boost for conservatives trying to trim or kill Obamacare, a new Rasmussen Reports just out finds that 51 percent of voters back shutting down the government until major cuts are made in the new health care program that begins Oct. 1.

The poll said, “Fifty-one percent of voters favor having a shutdown until Democrats and Republicans agree on what spending for the health care law to cut. Forty percent would rather avoid a government shutdown by authorizing spending for the health care law at existing levels.”

Some congressional conservatives and outside support groups have been urging GOP leaders to demand cuts to Obamacare before agreeing to a new budget deal. If the cuts aren’t made, they want the federal government close, though key payments like Social Security would continue.

Many polls have shown that the GOP would suffer in such a fight. But the Rasmussen poll finds that if the main reason is because Democrats and the president fail to give an inch on Obamacare, Republicans would win public support.

Overall, however, most believe that a shutdown would damage the economy. But there appears to be support for a partial shutdown until both sides can agree on spending cuts, including Obamacare. Some 53 percent told Rasmussen that they agree with a partial shutdown. Another 37 percent said they’d prefer Congress avoid a shutdown and OK spending at current levels.

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at