Donald Trump’s Republican presidential run has received the backing of former Alaska governor Sarah Palin.
His campaign has issued a statement that says Ms Palin was “proud” to endorse the billionaire.
Ms Palin was the vice-presidential nominee on Republican John McCain’s unsuccessful run in 2008.
She drew huge crowds and massive media attention, and is expected to join Mr Trump on stage at rally in Iowa on Tuesday night.
Sarah Palin said in the Trump campaign statment: “I am proud to endorse Donald J Trump for President of the United States of America.”