The remarks were seen as an attack on stay-at-home mothers, being that Ann Romney cared for her five children -- Tagg, Matt, Josh, Ben and Craig -- as a housewife.
Guess what, [Romney's] wife has actually never worked a day in her life, Rosen told CNN, referring to Ann Romney.
Ann Romney used her first tweet to suggest raising five children amounted to a job.
I made a choice to stay home and raise five boys. Believe me, it was hard work, she tweeted.
Politicos on both sides of the aisle condemned Hilary Rosen's remarks, including top advisers to President Barack Obama.
I could not disagree with Hilary Rosen any more strongly, tweeted Obama 2012 campaign manager Jim Messina. Her comments were wrong and family should be off limits. She should apologize.
Also Disappointed in Hilary Rosen's comments about Ann Romney, tweeted former Obama senior advisor David Axelrod. They were inappropriate and offensive.
Hilary Rosen was wrong about Ann Romney & I hope she will say so..., tweeted Joe Trippi, the pundit who managed Howard Dean's 2004 presidential campaign.
Rosen said on her Twitter account that her remarks were misconstrued and that she has nothing against stay-at-home moms.
When I said ... Ann Romney never worked I meant she never had to care for her kids AND earn a paycheck like MOST American women! #Truth, Rosen said. I've nothing against @AnnRomney. I just don't want Mitt using her as an expert on women struggling $ to support their family. She isn't.
In a post on CNN.com, Rosen wrote about the backlash and hate mail she received and urged Republicans to spare her the faux anger.
Spare me the faux anger from the right who view the issue of women's rights and advancement as a way to score political points. When it comes to supporting policies that would actually help women, their silence has been deafening, she said. I don't need lectures from the [Republican National Committee] on supporting women and fighting to increase opportunities for women; I've been doing it my whole career.
Conservative blogger Michelle Malkin said Rosen's remarks will bring Republicans together.
By attacking @AnnDRomney, @hilaryr managed to do what hadn't been poss. before tonight: Uniting the Right behind Romney. Heckuva job, Hil, she tweeted.
Salon.com's Glenn Greenwald said he thought Rosen's comments won't be one of the most controversial or damaging remarks of the election season.
On the scale of Election Year cynical stupidity, this Hilary Rosen thing won't even rate when all is said and done, he said.