Obama ignores pleas of Iranian students and says he will negotiate with Ahmadinejad. Jules Crittenden: "History's age-old lesson is that sucking up to ambitious dictators is usually a bad idea." Pictures of the protests in Iran. Fred Kaplan: After its fraudulent election, Obama should harden his stance with Iran. DeMint endorses Rubio. REPUBLICAN senator John Ensign admits affair. Obama swats a fly: