Donald Trump blasts Cruz-Kasich collaboration

Donald Trump has hit out at a collaboration between Ted Cruz and John Kasich aimed at unifying the anti-Trump vote in some remaining primaries.

Mr Trump said his two rivals are colluding in a way that would be illegal in many industries.

Under the arrangement outlined on Sunday, Mr Kasich, the Ohio governor, will step back in the Indiana contest on May 3 to let Mr Cruz bid for voters who do not like Mr Trump.