This has been the most aggressive speech of the week. And the most substantive I've seen Obama give. It's not a thematic address: It's not about hope or values or the universality of the American experience of the illusory obstacles that divide us. It's concrete. It's about the failure of the Republican Party, and the promises of the Democratic Party. Internet is spotty and the speech is ongoing, so for now, this is an open thread on his speech. More later, of course.