There is no doubt that the U.S. Senate will vote against impeaching President Donald Trump. That has been clear from the beginning of the impeachment process last fall.

But the Senate is duty bound to conduct the trial of the president, based on the articles of impeachment passed by the House of Representatives. It should therefore conduct the trial in a fair and impartial manner, and that includes listening to witnesses who will shed light on the president’s actions that led to the articles.

Senate Majority Leader Mitch McConnell would rather have this done quickly, as would President Trump. They want to wrap it up quickly, without any more information presented about what the president did. The testimony is not going to change the senators’ minds or their votes.

Well, that’s too bad. The Senate has a duty here, and it should do it to the best of its ability. It may choose to ignore the testimony that former National Security Adviser John Bolton and others may provide, but it should allow it to be presented.