None of which justifies a talk show host calling a vice presidential candidate a ho.
There are several negative allegations about Harris as a DA. She did deny knowledge of those drug lab tech's issues at the time, which sounds right to me because first of all the lab operated under aegis of the PD not the DA's office, secondly in a setup where a lab tech was so messed up she was consuming some of the drug samples herself, do we think any DA would generally be down with that? At best it was a secondhand oversight issue, and in fact Harris later made some related policy changes that resulted in dismissal of around a thousand cases.
As for the death row case, that's murkier. Harris acknowledged "feeling terrible" about it to an NYT reporter, but did not explain how she had come to deny the new DNA test that Newsom eventually granted.
So Harris is not perfect.
This gives Limbaugh no cause, however, to insult Harris the VP candidate with sexual innuendo. He wasn't talking there about drug lab evidence gone awry, he was relaying sexual innuendo picked up elsewhere on media and using it as an excuse to air the idea she traded sex for a better job. And "even if" a pre-DA Harris had "slept her way into politics", where are Limbaugh's public tongue lashings of male politicians thinking they had every right to inflict sexual attention on women around them after they landed in a public office?
Countless men quake in their boots when the possibility is raised that the little black book of a celebrity-level madam like Heidi Fleiss or Deborah Jeane Palfrey might find the light of day. And yet men persist, and publicly, in wanting to apply a whole different standard to women. Men feel their oats, women are fair game, even a perk of the job, but are then called hos? Wow. This is the 21st century, not the 1700s.
Limbaugh's passing on of the insult to Harris is textbook double standard stuff. Ask Senator Claire McCaskill sometime, or read her book
Plenty Ladylike.