Treasury undersecretary to attend G-20 meeting

Geithner has said that, even if President Obama wins a second term in November, he is unlikely to stay on as Treasury secretary.

The G-20 is a group of advanced emerging and advanced economies, which includes 19 countries and the European Union. 

Treasury said Brainard would “discuss measures to promote global growth and economic stability” while in Mexico City.

Geithner attended meetings of G-20 finance chiefs in Scotland, South Korea and France between 2009 and 2011.