Ed Miliband appeared to be taken aback when ITV News correspondent Emily Morgan compared his leadership to that of former Prime Minister Gordon Brown.
Mr Miliband's position is under scrutiny after a recent poll showed half the public think he should be replaced before the 2015 general election.
Completely ignoring the question, he said "thanks, I am glad I called on you" and went on to speak to another journalist.
Mr Miliband was asked questions after announcing plans for the Job Seekers' allowance to be "replaced with a new youth allowance" for 18 to 21-year-olds in a bid to increase their skills.
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