The probability is very low that these commentators know for a fact that the carry trade is behind the move because we do not get hard information on carry trades from any source. (earnforex.com)
It is notable that voters complained about the lack of hard information even at a late stage in the campaign. (newstatesman.com)
You'd have to look up what exactly is acceptable in that particular state, but it's not usually hard information to find. (law.stackexchange.com)