A Supreme Court decision that overturned Roe v. Wade could bring abortion bans to as many as half the states in the country already poised to prohibit the procedure. Such a move would also have knock-on effects on the primarily blue states that would maintain access to abortion.

(SOURCE) https://www.cnn.com/2021/10/30/politics/roe-wade-reversal-abortion-driving-distances/index.html