A heated battle is expected following the death of US Supreme Court Judge Ruth Bader Ginsburg - who has died at the age of 87.
Her death could turn into a big political row in the US, allowing Donald Trump to nominate a more conservative replacement.
Law Lecturer at NUIG, Larry Donnelly, says she was a truly remarkable woman, who's been credited as being 'a political rock star'.
"She was diminutive of stature, she was soft spoken, but she was a towering intellect, she was a force of nature.
"If you look at her life, graduating top of her class from Columbia Law School, becoming a top notch legal academic and activist lawyer
"She showed women you could do it all, she did all that, and she raised a family.
"She was a real trailblazer for equality and justice."
