Here is the question Amy Klobuchar  had for House Impeachment Managers (Source Fox News): 

 “I was on the trial committee for the last impeachment trial in the Senate, which involved Judge Thomas Porteous who was ultimately removed. During that time, the Senate trial committee heard from 26 witnesses, 17 of whom had not previously testified in the House. What possible reason could there be for allowing 26 witnesses in a judicial impeachment trial and hearing none for a president’s trial?”

Here is the response she got from Rep Adam Schiff (Source Fox News): 

“I would say that the need for witnesses in the impeachment trial of a president of the United States is a far more compelling circumstance than the impeachment of a judge.”