One day after the U.S. Supreme Court overruled Roe v. Wade, which gave constitutional abortion rights to women for more than 50 years, a Texas senator is now going viral online for comparing it to another landmark ruling that was overruled related to racial segregation. Sen. John Cornyn responded to a tweet by former president Barack Obama that denounced the Roe v. Wade decision. Cornyn's tweet said "Now do Plessy vs Ferguson/Brown vs Board of Education."