“The idea behind the anti-abortion bill is to ban abortion once the unborn child is viable – that is, able to survive – outside the womb. There is disagreement over when this occurs during a period of 20 to 24 weeks after fertilization.” — at the link above
That’s great; such a law, if it passes and then survives judicial scrutiny, will result in fewer lives ended, and fewer butchers like Kermit Gosnell killing infants born alive. But Senator Rubio has also worked hard to give amnesty and voting rights to illegal immigrants who will disproportionately support the Democrats, the party of government-paid abortion at any time for any reason. And that “immigration” bill is way more likely to survive any challenges.