SIOUX FALLS, S.D.(KELO)- A legal challenge is on the way for the Abortion Amendment that’s expected to be on this November’s ballot.

Ballot measure opponents say thousands of petition signatures were collected in violation of South Dakota law.

Jon Hansen, Co-chair of the Life Defense Fund, says petition circulators violated a number of warnings that were issued by the Attorney General last year.

They’re expected to have enough signatures…the question is, were they legally obtained?

The group called Dakotans for Health, led by Rick Weiland, says it has collected 55-thousand signatures to place the constitutional amendment on the November ballot…far more than needed.

Jon Hansen, Co-chair of the Life-Defense Fund, says petition circulators violated a number of warning that were issued by Attorney General Marty Jackley last year.