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"Clueless" star Stacey Dash has come under attack on Twitter after publicly endorsing Republican presidential candidate Mitt Romney.

"Vote for Romney. The only choice for your future," Dash tweeted on Sunday accompanied by a picture of her in a patriotic bathing suit.

"You're an unemployed black woman endorsing @MittRomney. You're voting against yourself thrice. You poor beautiful idiot," one user tweeted.

After the negative backlash, Dash stood by her comment, tweeting, "My humble opinion… EVERYONE is entitled to one."

Women's rights activists Sandra Fluke, who spoke at the Democratic National Convention, tweeted her support for Dash on Monday.

"So disappointed to see people attacking @REALStaceyDash for voicing her opinion. Disagree politically, but #racist attacks are unacceptable."

Earlier this week, "Good Morning America" caught up with Dash and the rest of the "Clueless" cast while they were reuniting for a photo shoot for Entertainment Weekly magazine's Reunions Issue.