article_snippet.sent: Clinton looks set to come under renewed pressure to explain Clinton after a letter revealed Clinton had been asked about Clinton use of private email by a White House committee two years ago - but refused to answer.
article_snippet.sent: The leaked letter, obtained by the New York Times, casts a further shadow over Clinton just days into Clinton bid to become the Democrat's 2016 presidential candidate.
article_snippet.sent: Clinton found Clinton at the centre of a storm in recent months after it was revealed
article_snippet.sent: Clinton is likely to want to play down this latest revelation as Clinton begins campaigning in Iowa .
article_snippet.sent: Clinton is likely to want to play down these latest revelations, as Clinton begins a campaign for nomination which is set to last until the end of June next year.
highlights_snippet.sent: Latest revelation casts further shadow as Clinton begins White House bid .