So far though, he isn't turning them around and sending them back. His administration is in agreement to allow the U.N. to handle this.
He isn't because he CAN'T. Mexico is a sovereign country.
Regarding the UN, my understanding is Mexico with the UN's help will process 'refugees' in accordance with international law. That is, those who meet the definition of refugee will be admitted INTO MEXICO. Those who do not meet the definition of refugee will be turned back. That is what the state dept applauded.
It now appears that the migrants have said f all that and are charging northward anyway.
I'm hoping they can now be considered a lawless mob deserving of no consideration once they get here. We shall see what Trump does. He'd best start preparing the American people for the propaganda onslaught the leftists are preparing. They will be on his side if they know the FACTS of this mess.