Update: Jan. 11
Trump said late Friday that he would not call an emergency right now. (The 1% probability happened.) He fears he would lose in court. And even with the Senate away for the weekend, Mitch McConnell hinted this after noon he would get talks going behind the scenes.
The Wall Street Journal today, in an op-ed by Dan Crenshall, "The Silly Arguments Against a Border Wall", argues that the Democrats need to be more flexible on this.