First, Spielberg is finally going to make his Abraham Lincoln movie, and none other than Daniel Day Lewis will be playing Lincoln. This pretty much ensures that the film will at least be watchable.
Also, Old Abe was not unknown for pushing his generals to commit to battle. Here is a most excellent example of him doing just that, in a telegraph to Ulysses S. Grant on April 7, 1865:
Gen. Sheridan says “If the thing is pressed I think that Lee will surrender.” Let the thing be pressed. A. LINCOLN*
Let the thing be pressed, indeed!
*from Volume 8 of the Collected Works of Abraham Lincoln