Holding firm on DACA may help Democrats take back control of the House of Representatives in the 2018 elections.

There are 142 congressional districts that have Hispanic populations greater than the national average, about 18 percent.

==> 52 of those districts are currently held by Republicans. (Among those 52 GOP-held districts, 18 are already rated as competitive by the Cook Political Report.)

==> In 21 Republican-held House districts, the Hispanic population tops 30 percent.

A poll this week found 87 percent of people wanted the Dreamers to stay provided they met requirements such as working or going to school. This is an unusually high percentage of agreement in a nation that is very divided politically.

Supporting DACA is a winning issue for Democrats. Standing strong will solidify and excite their "base" of supporters and increase turnout in this year's elections.

Plus there is this bonus: holding firm on DACA avoids giving Trump a "win" which he so desperately wants.

Democrats must not give in on DACA no matter how long the shutdown stays in effect.

Book sales.

All the publicity about the book and the lawsuits, etc. has pushed the book immediately to the top of the bestseller lists.

People are speculating that Trump gets a share of the profits and that he is helping the book sales by getting more publicity, which he is very good at.