I don't know what she was referring to if she said that, although I didn't hear her say that and I watched most of the briefing. I liked the article because of this part:

Trump did mention immigration reform during that Arizona immigration speech in 2016, but in a much different manner.

“When politicians talk about immigration reform, they usually mean the following: amnesty, open borders, and lower wages,” Trump said in reference to politicians such as Republican South Carolina Sen. Lindsey Graham and former Florida Gov. Jeb Bush.

The reforms Trump mentioned in that speech include ramping up deportations, securing the border, and reforming the legal immigration system in order to choose immigrants based on merit. Trump has worked to accomplish all of these goals in office, and statistics released Monday show that border crossings have significantly dropped under his watch.
I'm beginning to wonder something .... does Sanders meet directly with Trump to prepare for these briefings or is she meeting with Kelly to get the script written for the briefings? If she's meeting with Kelly instead of Trump, then she's in big doo-doo.