The news that the Supreme Court justice was treated for cancer was at the forefront of conversation on social media on Friday.
With Pat Lawson Muse, Harrison was one of the first two African American women to co-anchor the news.
Supreme Court Justice Ginsburg is recovering from surgery after having two cancerous nodules removed from her lungs.
"Justice Ginsburg is very ill. Another Justice appointment inevitable and soon. Bad news for the left," O'Reilly tweeted on Friday afternnon.
The Supreme Court will tackle President Donald Trump's travel ban, gay civil rights and partisan gerrymandering.
Justice Ruth Bader Ginsburg, a self-described "flaming feminist litigator," is ready to leave it all on the bench in the upcoming Supreme Court term.
Simon & Schuster will publish the collection in January. Seven "Notorious RBG" things to read, do, see or buy in the meantime.
Maia Weinstock's Supreme Court Lego figures of the women justices were an Internet hit. What else is she up to?