Clinton and rival Sen. Bernie Sanders (I-VT) were in a dead heat for much of the night. While the last polls closed in the Bluegress State at 7 p.m. ET, NBC News didn't call Clinton the "apparent winner" until 10:10 p.m. ET, and CNN's projection came shortly before midnight.
— NBC News (@NBCNews) May 18, 2016
Kentucky's Secretary of State Alison Lundergan Grimes (D) had earlier called into CNN to say Clinton was the "unofficial winner" of the primary. Clinton also declared victory for herself in a tweet:
— Hillary Clinton (@HillaryClinton) May 18, 2016
This post has been updated.