"Hillary Clinton will do anything to gain and hang on to power, anything," corporate leader-turned politician Fiorina said during the GOP under card Presidential debate in Iowa.

Clinton, 68, is eying to become the first woman President of the US and is likely to win Democratic Party nomination. A former First Lady, Clinton served as the Secretary of State in the first term of the Barack Obama administration.

Fiorina, a former Hewlett-Packard CEO who is struggling to gain traction before voters head to the caucuses, unleashed a series of crowd-pleasing insults at Clinton and said Clinton continues to lie to the American people.

During the debate, Fiorina lashed out at Clinton on the 2012 Benghazi attack in Libya, when militants attacked the US diplomatic compound, killing Ambassador J Christopher Stevens.

While low on her poll numbers, Fiorina said that she can successfully take on Clinton during the Presidential election.

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