They were already lined up. When speculation was rampant about female candidates, derogatory emails were already being sent in the US Senate. Robert's nomination came as a surprise to many, but some were already lined up to oppose irrespective of candidate.
NARAL's decision for pulling the add made me chuckle darkly. They cited 'miscontrual' of their message, while their primary PR person (a male) resigned. Guess 'miscontrual' is a euphamism for lies, libel and slander. Yes, libel and slander. The lies were both spoken and printed.
I'm not normally a litigious person, but if some group tried to equate something I said or wrote in one year, tie it to an event 7 years after, and tried to pin it on whatever I said, I'd be filing a lawsuit for at least defamation of character.