US Democratic presidential candidate Hillary Clinton has declared victory in the Kentucky primary as she moves nearer the presidential nomination.
With most of the votes counted in the state and less than 0.5% ahead, Mrs Clinton was declared the unofficial winner by one state official.
In the night’s other primary contest Senator Bernie Sanders won in Oregon.
Alison Lundergan Grimes, chairwoman of the Kentucky State Board of Elections, told CNN that unofficial results confirmed that Clinton would narrowly win the state’s primary contest.
Shortly afterwards, Mrs Clinton tweeted: “We just won Kentucky! Thanks to everyone who turned out. We’re always stronger united.”
But Sanders told a rally in California that he would fight on until the last vote is cast.
In the Republican race, Donald Trump won the party’s only contest on Tuesday in Oregon, which was no surprise as he was the only candidate left in the race.
The Kentucky Democratic primary will award 60 delegates to go to the party’s convention in Philadelphia while Oregon’s primary will award 74.
Pressure is rising on Sanders, a senator from Vermont who has historically been an independent, not a Democrat, to drop out of the race.
But he said he still has a path to the Democratic nomination,reports the BBC.
Speaking at the California rally, Sanders recognised his campaign’s “steep hill to climb” but called for his supporters to remain hopeful and “take our fight into the convention” in July.
