REMEMBER WHAT HAPPENED TO THE FIRST GUY WHO CROSSED THE RUBICON: Jonathan Chait: Obama’s Immigration Plan Should Scare Liberals, Too. “To think that the cycle will end here, and that a future president won’t claim more expansive and disturbing powers to selectively enforce the law, requires an optimism not borne out by history.”

UPDATE: Obama’s standing among voters is hurting Democrats, poll finds. “By 42-32 percent, voters say their opinions of Obama make them more likely to vote this fall for a Republican than for a Democrat. And for the first time this election cycle, more people said they’d vote for a Republican than a Democrat for Congress, by 43 percent to 38 percent.”

Weak horse.