Australian Federal Election 2016: Cash and Nash think twice

Australian Minister for Employment and Minister for Women, Liberal Senator Michaelia Cash took down this retweet on Saturday 14 May 2016:

As did the Minister for Rural Health and Minister for Regional Development Nationals Senator Fiona Nash on the same day:

Even Deputy Prime Minister and Nationals MP for New England Barnaby Joyce thought twice about what was being retweeted and deleted it after half a minute.

So what were the official Liberal Party and @MathiasCormann tweets that caused these three politicians to disappear their approval?

Why it was the same one - this one:

For Cash,Nash and Joyce it was a clear case of ‘Don’t mention the plan!’

* All tweets found at Politwoops