Donald Trump's two rivals for the Republican party's presidential nomination have announced they will now co-ordinate strategies against him.
Ted Cruz will cut campaigning in the Oregon and New Mexico primaries to help John Kasich, while the latter will give Mr Cruz a "clear path" in Indiana.
Mr Trump said his rivals were "totally desperate" and "mathematically dead".
He has a clear lead in delegates but may still fall short of the 1,237 needed to win outright.
If he does not reach the target, the vote will go to a contested convention - where a different nominee may emerge through negotiations among party figures.
Donald Trump currently has 845 delegates, Mr Cruz 559 and Mr Kasich 148. Read more...
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