Republicans, Sen. Mary Lazich of New Berlin and Rep. Jesse Kremer of Kewaskum introduced their bill on Thursday, saying they want to prevent unborn children from feeling pain.
Under their proposal, the state would charge doctors with a felony for performing an abortion on a woman more than 20 weeks pregnant, if the case is not an emergency. Penalties could include a three-year prison term or a $10,000 fine.
Gov. Walker says he would sign the bill, if it reaches his desk.
Democratic Sen. Jennifer Shilling released a statement in response to the proposed ban, insisting it would limit women's freedom to choose and impose on them, the ideology of others.