The midterm elections were just a test about whether Trump could use harsh immigration rhetoric to rally voters to his side. Immigration may have saved Republicans a deep red Senate seat for the Republicans, but in the House (where all voters got to cast ballots) it was a disaster.
Trump
may like to believe that the midterm outcome was somehow not a reflection on his policies. Remember, though, that the 2018 midterm was the most
presidential-centric in modern history. A higher percentage of those who approved of the President's job performance voted for the President's party than ever before in a midterm. A higher percentage of those who disapproved of Trump's job voted for the opposition party than ever before in a midterm.
The overall House result was that Democrats won a plurality of the vote in states, making up 329 electoral votes to the Republicans' 206. This
calculation, done by Catalist, a data company that works with Democrats and others, importantly takes into account how seats where there was either no Democrat or no Republican on the ballot would have voted if there had been one. Democrats "won" a plurality of the House vote in almost all the swing states that Trump won in 2016, including Florida, Iowa, Michigan, North Carolina, Pennsylvania and Wisconsin.
I wouldn't expect the shutdown to play out differently with regard to immigration. In the Quinnipiac poll, only 34% of voters favor a shutdown because of disagreements over funding for the wall. When asked who would get blamed for a shutdown, 51% said congressional Republicans and the President, compared with 37% who said congressional Democrats. A
Suffolk University poll out this week came up with similar results
The shutdown may please the base. It looks like a political loser overall, however. Perhaps more worrisome for Republicans, it doesn't look like Trump learned a single thing from Republicans losing in the midterms.