IOWA CITY, Iowa — Bernie Sanders’s campaign has been telling its aides that it expects to win the Iowa caucuses, setting expectations high in the final days leading up to the Feb. 3 contest.

Although the Vermont senator has largely remained in Washington to sit for President Trump’s impeachment trial during the last few weeks, his organizers and campaign staff on the ground in the state remain confident that Sanders’s message has won enough Iowa Democrats over to secure a crucial victory.