Here are the four most significant unanswered questions that Congress must figure out to end a shutdown:1. Will rank-and-file Democrats even accept a deal that includes funding for Trump's border wall? Trump's wall has become a symbol of everything the left despises about the president. Majorities of Americans oppose a border wall (63 percent), according to a new Washington Post-ABC News poll. Which means: As soon as we get out of this shutdown, Congress is potentially at risk of another.

Source: Washington Post January 22, 2018 13:41 UTC