House Republican leaders have produced their own health care reform bill. Here is the first thing you need to know: It would do almost nothing to reduce the scandalously high number of Americans who have no insurance. And it makes only a token stab at slowing the relentlessly rising costs of medical care.

Despite that, the Republicans are pitching their bill as far more affordable than the Democrats’ approach. And you are sure to hear a lot in coming days about how it could reduce health insurance premiums. How it compares in that respect with the Democratic proposal is not yet clear. But a lot of the Republicans’ savings on premiums come from reduced coverage. Pay less and get less.

The good news is that this bill has no chance of passing. The bad news is that unless the White House and Congressional Democrats push back with the hard facts, the Republicans could use it to spread false hope of a “cheaper” alternative to scuttle real health care reform.

There’s no question that the Republicans’ bill is cheaper because it does so little to help the uninsured. According to the Congressional Budget Office, it would provide $61 billion over 10 years to expand coverage, compared with more than $1 trillion in the Democrats’ bill.