president biden circumventing congress on immigration. this time shielding half a million migrants from deportation. how will he do that? we ll tell you now. i m bill hemmer live in new york. dana has the week off today. like a ray of sunshine. martha: i m martha maccallum, this is america s newsroom. this afternoon president biden will mark the 12th anniversary of daca with a new policy rewarding some migrants who came to the united states illegally. bill: that will block deportations for half a million people married to u.s. citizens as well as 50,000 of their kids. it applies to people who have lived here for at least ten years and that excludes anyone with prior deportations. martha: the action coming less than five months before the presidential election where the border, of course, could be a deciding factor . former acting dhs secretary chad wolf thinks it s about optics. it certainly will be a challenged. the timing you indicated is really important here. ob