Trump did not subpoena the Trump Organization yesterday. The news broke yesterday.
https://www.nytimes.com/2018/03/15/us/politics/trump-organization-subpoena-mueller-russia.html
The special counsel, Robert S. Mueller III, has subpoenaed the Trump Organization in recent weeks to turn over documents, including some related to Russia, according to two people briefed on the matter. The order is the first known instance of the special counsel demanding records directly related to President Trump’s businesses, bringing the investigation closer to the president.