Im doing with a group a research paper about abortion our question is (is it con

Im doing with a group a research paper about abortion our question is (is it constitutional to have an abortion after the 20 weeks) My part is to write 4-5 pages about some cases I have some cases already to write about 1- Gris wold vs Connecticut (year 1965) 2- roe vs wade (year 1973) 3-planned parenthood vs Casey (1992) Our question is no to the question explain the court cases discussions and how its relate to our answer Since its about political science class it should be constitutionally and please cite the sources to