<p>The two leading candidates vying to replace Gov. Gray Davis (search) are taking aim at another issue on the Oct. 7 recall ballot: Proposition 54 (search), which seeks to limit what racial data the government can collect.</p>
<p>Lt. Gov. Cruz Bustamante (search) was expected to announce Sunday that he would pour nearly $4 million into a campaign to defeat the measure. And Republican Arnold Schwarzenegger (search), who previously refused to take a position on the measure, said Saturday he opposed it.</p>