Former Republican presidential hopeful Carly Fiorina says she is endorsing Texas Sen. Ted Cruz for president.

Speaking at a rally in Miami Wednesday, Fiorina called Cruz a "leader and reformer... willing to take on the status quo in Washington."

She roused a chorus of boos from the crowd when she mentioned front-runner Donald Trump and referred to the billionaire businessman and Democratic front-runner Hillary Clinton as "the system."

Fiorina ended her campaign in February after failing to earn enough votes in early voting states to take on leading GOP candidates including Trump, Cruz and Marco Rubio.