After a marathon debate, 38 senators voted against it and 31 in favour. Its defeat means lawmakers must wait until next year to resubmit legislation.
Currently, abortion is allowed in Argentina only in cases of rape, or if the mother’s health is in danger.
Demonstrators on both sides of the debate rallied outside parliament as voting took place.
Anti-abortion activists have been jubilant. “It’s a joy to see that our society can be based on such an...