Denver (AP) State election officials say a proposed state constitutional amendment defining a fertilized human egg as a person has enough petition signatures to get on the November ballot.
Some supporters hope the amendment, if passed, will restrict or limit abortions in Colorado.
Secretary of State Mike Coffman said Thursday that backers turned in an estimated 103,000 valid signatures, far more than the 76,000 required.
Coffman says the estimate is based on an examination of a computer-selected random sample of about 6,500 of the signatures, or 5 percent of the 130,000 submitted.
Coffman's spokesman, Rich Coolidge, says state law established the sampling method for verifying signatures. Any appeal would be made in state district court.