I think everyone already knew this, but the Clintons are not pristine and there is a lot of dirt available for the RNC spew machine. The following quote highlights that  very clearly.

“Clearly there’s a sense that she would be a tougher general election
candidate,” said one Republican strategist. “So why do we want to
acknowledge her and give her more credibility? Attacking her sends a
message to the Democratic electorate. If she’s not the person you want
to engage, why would you do that?”

To some degree, Clinton is now seen in conservative circles as a temporary ally who ought not be thrown off stride.


“She’s our best surrogate,” joked Barbara Comstock, a former RNC research director and GOP strategist.


But Comstock, like some other Republicans, also believes it’s risky to give Clinton a free pass.


“Given how volatile this campaign is, we should highlight that both
are left of center,” she said. “She and Obama are soul brother and
sister on philosophy. And right now you have to fight against the
ideology of both of them.”

Noting the photos that surfaced of Bill and Hillary Clinton with
Tony Rezko, the image of Jeremiah Wright with Bill Clinton in the White
House and the fact that the former president commuted the sentences of
some members of the Weather Underground, Comstock said the Obama vulnerabilities could be paired with Clinton.