The heckler, later identified as Republican State lawmaker Katherine Prudhomme O'Brien, has for years followed the former first lady, peppering her with questions about allegations of past sexual misconduct by Bill.

Clinton, 68, who is aiming at becoming the first ever woman President of the US and is so far leading the Democratic Party's race, described the repeated disruption in her speech as very rude.

Following the event, O'Brien told reporters that she was trying to ask Clinton about her husband's sexual impropriety decades ago.

"She told me this summer she doesn't know who she is and doesn't want to know who she is. How can she access that they are lying, which she told someone last month?" O’Brien said.

Meanwhile, Clinton, who is campaigning in New Hampshire, applauded Obama’s soon-to-be-announced executive action that would strengthen background checks and make it harder for dealers to sell guns to criminals.

Republican candidates including Donald Trump, Marco Rubio, Chris Christie and Ted Cruz have already announced their intention to undo this action curbing gun violence.

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