Nikki Haley wins Vermont Republican primary marking her first Super Tuesday victory

Nikki Haley won the GOP Presidential primary in Vermont on Tuesday, marking her second-ever victory against Donald Trump.

Her victory in Vermont marks the first time the former South Carolina governor has won a state primary during her campaign. Mr Trump, however, has already beaten Ms Haley in eleven state primaries this Super Tuesday.

As of late Saturday, the Republican presidential primaries in Alaska, California and Utah have yet to be called.

On Sunday, Ms Haley also won the GOP primary in Washington, DC, securing the victory with 62.8 per cent of the vote.

The former South Carolina governor hosted several events in and around the DC beltway region as she campaigned this past week. She also campaigned heavily in neighbouring Virginia, where Mr Trump still won the presidential primary on Tuesday.

As it stands, Mr Trump looks all but certain to be the GOP candidate again, having already won primaries in Iowa, the US Virgin Islands, North Dakota, New Hampshire, Nevada, South Carolina, Michigan, Idaho, Missouri and Virginia.

This is a developing story...