Amy McGrath @AmyMcGrathKY
Fascinating - 45% of the horses in today’s #KentuckyDerby are each other’s half brother. https://t.co/1PP9JoRatT — PolitiTweet.org
FiveThirtyEight @FiveThirtyEight
Mr. Prospector shows up in every 2018 Derby runner’s lineage. https://t.co/axfcYYjQRm #DerbyDay https://t.co/XbV311W2So