Partisan shrieking and Trump schadenfreude asisde, the persuit of any legal wrong-doing here is a double edged sword.
Everything shady, illegal and unethical that the Trump campaign did the Clinton campaign also did. That includes using information obtained from foreign nationals. In the case of Clinton it was:
1. The Christopher Steele "Trump dossier"
2. Seeking potentially damaging information from Ukranian sources regarding Trumps business dealings in Russia

If one is guilty, both are guilty. Personally I have no quarrel with the Clinton family and the Trump family spending quality time together in a minimum security facility. Talking about old times when Trump used to donate to their election campaigns, the family weddings...