>>rangham: the wittner's s they plan to hold a funeral for sara this saturday in broomfield, colorado.rbs newshour, i'm william brangham. >> woodruff: on tuesday, president trump signed a memoth aims to bar undocumented immigrants from being included determines how many members of congress are allocated for each state. lisa desjardins exploreshat it means. >> desjardins: the 2020 ceus is a once-in-a-decade feat, a oncount of the u.s. popula that will affect policy and power for years. issues, from the pandemic, tod political debate over things like the president's memo about .how it should be conduct to help us understand this, i'm joined by npr's hansi g. thank you so much, and let me start off with the president's move. help us understand it. can the president, in fact, block the census from counting undocumented snirgts. >> well, i think the thing to take look at is the constitution. let's take a look at the actual text of the constitution. constitution, the actual text says "representatives shall be apportioned among the several states accordingo their spective numbers, counting the