Impeachment Trial Keeps Candidates In D.C. Ahead Of Iowa Caucuses

The impeachment trial of President Donald Trump is affecting the campaign plans of four senators: Michael Bennett, Amy Klobuchar, Bernie Sanders, and Elizabeth Warren. They must return to Washington, D.C., for the trial, disrupting their campaign schedules in Iowa. To maintain momentum, they rely on surrogates like Alexandria Ocasio-Cortez and Julian Castro. The trial's timing may impact their campaign effectiveness, as Iowans value personal interaction with candidates.

What role are surrogates playing in the campaigns of the senators during the impeachment trial?

What do Iowans prefer when it comes to meeting candidates, according to the text?