The actress voiced her support for Romney in a post on her Twitter.com page and she was bombarded with nasty messages from followers who condemned her for not backing incumbent Democrat Barack Obama.
She has now opened up about the dispute in a candid interview with TV host Piers Morgan, revealing she was stunned by the harsh comments over her political opinion.
Dash says, ""I really don't understand the fury. I don't understand it. I don't get it... I am shocked. Sad, not angry. Saddened and shocked. Really shocked. But you know what, you can't expect everyone to agree with you... (It was) pretty harsh...
""It is my right as an American citizen. It's my constitutional right to have my choice of who I want to vote for for president... And I chose him not by the colour of his skin but the content of his character.""
The actress also reveals the dispute prompted Romney's running mate Paul Ryan to give her a call.
She adds, ""He said thank you so much for your support and that I was brave and that they support me. And I thought that was just so generous and kind, you know. Lovely, really.""