An aide for Governor Scott Walker, Taylor Palmisano, was fired after tweets from 2011 surfaced where she made inflammatory remarks about Mexicans and undocumented immigrants.
Palmisano's ouster as deputy finance director comes after the GOP governor fired staffer Steven Krieser after Facebook posts surfaced where he likened undocumented immigrants to Satan.
Palmisano, who deactivated her Facebook and Twitter profiles, gave a statement to the Journal Sentinel.
"I deeply regret these offensive and irresponsible remarks," she said. "I sincerely apologize, and understand the consequences of making such unacceptable statements."