In the wake of the 2008 election and on the eve of an inaugural address with "a new birth of freedom," a phrase borrowed from the Gettysburg Address, as its theme, the Lincoln we should remember is the politician whose greatness lay in his capacity for growth. Much of that growth stemmed from his complex relationship with the radicals of his day, black and white abolitionists who fought against overwhelming odds to bring the moral issue of slavery to the forefront of national life.
Until well into the Civil War, Lincoln was not an advocate of immediate abolition. But he was well aware of the abolitionists' significance in creating public sentiment hostile to slavery. Every schoolboy, Lincoln noted in 1858, recognized the names of William Wilberforce and Granville Sharpe, leaders of the earlier struggle to outlaw the Atlantic slave trade, "but who can now name a single man who labored to retard it?" On issue after issue--abolition in the nation's capital, wartime emancipation, enlisting black soldiers, amending the Constitution to abolish slavery, allowing some blacks to vote--Lincoln came to occupy positions the abolitionists had first staked out. The destruction of slavery during the war offers an example, as relevant today as in Lincoln's time, of how the combination of an engaged social movement and an enlightened leader can produce progressive social change.
You can visit Foner's site here. Nice essay on Obama as well.