FRANKFORT: Hillary Clinton today eked out a narrow win in the Kentucky Democratic primary over rival Bernie Sanders who kept his White House hopes alive with a crucial victory in Oregon even as she set her sights on an epic clash with Republican Donald Trump in the November polls.

Clinton, 68, squeezed out a cliffhanger victory over Sanders in Kentucky, a result that keeps her on track to win the party's nomination for the presidential polls but also highlights deep divisions in the party.

The former secretary of state won the state by half a percentage point with nearly all the votes counted.

Sanders, meanwhile, won the Oregon Democratic primary, bagging 53 per cent votes to her 47 per cent.

However, despite the series of defeats in the Democratic primaries over the past few weeks including Oregon and a very close finish in Kentucky, Clinton still appears to be on her way to clinch the nomination of the Democratic party for the November 8 general elections.

This is mainly because she is way ahead of Sanders in the delegate count and requires less than 100 more delegates to reach the magical figure of 2,383 delegates to become the Democratic presidential nominee.

According to US media estimates, with 55 delegates up for grabs in Kentucky, Clinton and Sanders both won 27 delegates with one remaining to be decided.

In Oregon with 61 delegates to be taken, Sanders won 28 delegates and Clinton took 24 with 9 remaining to be accounted for.

Sanders who has 1,526 delegates as against Clinton's 2,289 delegates, needs to win nearly 70 per cent of the rest of the delegates at stake in the remaining nine primaries.

"We just won Kentucky! Thanks to everyone who turned out. We're always stronger united," Clinton tweeted as she was declared the winner by just 1,923 votes.

Such a narrow win may have derailed some of the momentum of the Clinton Campaign but she has set her sights on her epic clash with 69-year-old Trump in the presidential polls.

In a tweet and an email, she urged her supporters to help raise funds to defeat Trump in the polls.

Meanwhile, on the Republican side, Trump garnered nearly two-thirds of the total votes polled in Oregon, further consolidating his position as the presumptive presidential nominee.

Trump, who joined politics less than a year ago, has defeated 16 top Republican leaders to emerge as the presumptive nominee.

With a win in Oregon, Trump has 1,171 delegates in his kitty and needs just 66 delegates to reach the 1,237 figure to officially clinch the nomination.

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