They met at the COP23 conference on climate change in Bonn on Monday 13 November. The conference lasts for two weeks (6-17 November) and the objective is to set the rules of the game for the implementation of the 2015 Paris agreement on tackling climate change. Apart from the US and Syria, all countries have signed up to the challenge.
Her picture caption on Twitter reads: “#cop23 Strong against climate change. Make US really great again!”