The Nationals are under increasing pressure to explain the actions of colleague Andrew Broad, who resigned on Monday after the media revealed the married MP had used a dating website to meet with a “sugar baby” on a trip to Hong Kong.
Mr Broad quit his position as assistant minister to Deputy Prime Minister Michael McCormack.
Mr McCormack told a journalist he was told about the serious allegations “a couple of weeks ago”. The story broke on Monday when magazine New Idea published screenshots of text messages between Mr Broad and the young woman involved.