Here's our Twitter topic of the day:
Just in time for President's Day, C-Span television has published a ranking of the best and worst commanders in chief.
Historians chose Abraham Lincoln, who led America through the civil war, as the best president. Guardian readers may be dismayed to learn George Bush was not in last place (he was listed as seventh-worst). The dishonourable distinction went to James Buchanan, who failed to avert the civil war.
Who would you place at the top and the bottom the list?
Share your thoughts by sending us a response on our GuardianUS Twitter page. You can do this by logging on to your Twitter account, typing @GuardianUS and then your comment of 140 characters or less. Of course, you can always comment on this blog post. Thank you for contributing.
UPDATE: Replies from readers
Most people list Bush as the worst, since people weren't alive for Buchanan or others. But he certainly ranks in the bottom 5.
