The Chairman of the Conservative party, Patrick McLoughlin, on Thursday refused to answer questions about the £70,000 fine the party received for failures in reporting election expenses.
The fine relates to an investigation of expenses by Britain's Election Commission from the 2015 general election and three special elections in 2014.
A dozen police forces are also looking into whether laws were broken in the 2015 contest.
Asked for a comment by a Sky News reporter, Mr McLoughlin attempted to push the camera away and referred to the party's written statement.
The fines follow reports from Channel 4 news that the Conservatives incorrectly recorded spending on bus tours that took activists to campaign in key areas.
It is the largest fine ever imposed by the commission.