The AP reports that Trump is preparing a plan to call up 100,000 national guard troops to round up Mexicans and put them in camps. Best case scenario is that he only deports them.
Trump’s spokeshole says this is a lie, but Spicer is a pathological liar just like his boss, so his statements are worthless. You have to look at their conduct and not at their words. In reality, there is a draft memo for the plan. You can read it here.