Good question. Here's what Newsmax said:
" When it became known in January 2001 that the ex-president had pardoned Rich, probers immediately zeroed in on his ex-wife Denise, who had donated more than $1 million to Democratic campaigns - including Hillary Clinton's first Senate race - during the same period that Rich was doing business with Saddam.
Rich's ex also ponied up $450,000 for Clinton's library and donated the max to the Clintons' defense fund."