Democratic state attorney general nominee Kamala Harris on Wednesday announced her first

Democratic state attorney general nominee Kamala Harris on Wednesday announced her first attack ad against GOP rival Steve Cooley, accusing the Republican district attorney of Los Angeles County of shutting down his environmental crimes unit after a deputy starting investigating one of his campaign contributions.

Cooley called the ad “absolutely 100% false,” saying his environmental crimes unit was never disbanded and, in fact, is prosecuting more cases than ever. He said a similar false accusation was made during his 2004 reelection campaign and that “Ms. Harris is, bluntly and frankly, repeating a lie.”