It is worth reminding that being president is a tough job for anybody, and particularly so in the information age. There's such a glut of information. Anything a president says or does is picked up on the Internet or the 24/7 news media and criticized almost instantly. Leaders persuade through their words and as such their words need to be measured and well chosen. It is a tough job.
True forgiveness deals with the past, all of the past, to make the future possible. We cannot go on nursing grudges even vicariously for those who cannot speak for themselves any longer. We have to accept that we do what we do for generations past, present and yet to come. That is what makes a community a community or a people a people-for better or for worse.
But indefinite visions of ambition are weak against the ease of doing what is habitual or beguilingly agreeable; and we all know the difficulty of carrying out a resolve when we secretly long that it may turn out to be unnecessary. In such states of mind the most incredulous person has a private leaning towards miracle: impossible to conceive how our wish could be fulfilled, still - very wonderful things have happened!