The latest results, with 621 of 956 precincts reporting - that's 65 percent - show Ted Cruz winning the Idaho GOP presidential primary with 43.9 percent of the vote. Donald Trump is in second place with 28.7 percent; Marco Rubio trails with 16.7 percent; and John Kasich with 7.3 percent.

Under Idaho GOP rules, candidates get a share of Idaho's 32 delegates only if they get at least 20 percent of the vote, so if these numbers hold, Cruz and Trump will split Idaho's delegates; Cruz would get 19, and Trump 13.

In the Constitution Party primary, J.R. Myers leads with 47 percent, followed by Scott Copeland, 38.9 percent, and Patrick Anthony Ockander, 14.1 percent.