We need to have a revised map with all the proposed new states!
This is the first I've ever heard of NE Colorado making its own state - perhaps he meant to have all of rural Colorado secede from the Denver-Boulder corridor? That might make a little more sense.
Let's split California into the proposed five states. Also, form a state consisting of Oregon and Washington east of the Cascades, maybe including the proposed State of Jefferson too. Texas should also be split into five states - have one that is gerrymandered to include all Democratic-leaning areas of the state (Austin, and narrow corridors from it to include Dem-leaning parts of Dallas and Houston, and then another narrow corridor south to include Hispanic-majority areas in San Antonio, then expand to include to all places south and west, extending along the Rio Grande all the way to El Paso). Then the other four states can be Republican - have two in West Texas and two in East Texas.
Moving east, let's form the state of Chicagoland, consisting of Cook County and all counties it directly borders (including Lake, IN), leaving Illinois and Indiana solidly R too. Then we need to have Upstate New York form its own state separate from NYC + suburbs + Long Island. Also all of Florida more than 30 mi north of the I-4 corridor should secede and make its own state. Am I missing anybody?