HELENA, Mont. -

A proposed initiative to expand Medicaid to the working poor won't be on the Nov. 4 election ballot.

Sponsor Kim Abbott said Thursday there isn't enough time gather the 24,175 voter signatures that must be turned in by Friday.

She says organizers collected more than 25,000 signatures, but an internal review of a large sample showed about 30 percent would have been invalidated.

The proposal would have expanded Medicaid coverage to people making up to 138 percent of the federal poverty level, or about 70,000 people in Montana.

Abbott says delays in the attorney general's review of the measure for legal flaws held up collecting signatures by three weeks to a month, and a failed legal challenge by opponents of the measure and Attorney General Tim Fox added uncertainty.