Thomson ReutersFA Insights is a daily newsletter from Business Insider that delivers the top news and commentary for financial advisors. Kasich supporters have the best credit scores — and Clinton supporters have the worst (WalletHub) Almost 60% of John Kasich's supporters have excellent credit scores, the highest proportion among the candidates. Marco Rubio's supporters came in second at 58%, according to WalletHub's presidential credit score survey. On the flip side, nearly 26% of Hillary Clinton's supporters have bad credit, the largest fraction among the candidates.