Pentagon officials tell NPR that President Trump is prepared to extend the commitment of U.S. troops at the Mexico border into January.
The current order on troops at the border is set to expire on December 15th. The source from the Pentagon tells NPR that some troops may be switched out after the extension is made clear.
Source: https://www.npr.org/2018/11/28/671472765/trump-is-expected-to-extend-u-s-troops-deployment-to-mexico-border-into-january