From AP:

Conor Daly loses Lilly Diabetes sponsorship over remark his father made over 30 years ago

Associated Press

8:54 PM, Aug 24, 2018

ELKHART LAKE, Wis. (AP) — Lilly Diabetes has pulled its sponsorship of Conor Daly’s No. 6 car in the NASCAR Xfinity race at Road America, citing a racially insensitive remark made by the driver’s father in the 1980s that surfaced this week.

In a statement, [father Derek] Daly said he admitted to using a racial slur for African-Americans during a radio interview in the early 1980s. Daly, who had just moved to the United States then, said the term had a different meaning and connotation in his native Ireland.