The horrific shooting in Colorado will cast a pall over the day. It is yet another reminder that within human beings there is capacity for great goodness but also evil.

It is unfortunate but inevitable that it takes tragedy to drain the venom from the political campaign. The statements issued by President Obama and Mitt Romney were remarkably similar. That’s as it should be. Now is not the time or point-scoring or policy pronouncements. The Romney campaign e-mails: “Gov. Romney’s event today will go on as planned [in New Hampshire], and he will address the tragedy in Colorado.” Thank goodness we can put politics aside for now.

The campaign will not be drained of acrimony. The media race to the bottom won’t slow. The ad-makers will churn out attack spots. But for today perhaps it can all stop. Just for a day. We should be able to have a day of sadness — together.