Photo: Roberto Schmidt/AFP/Getty Images My initial reaction to the news that Cory Booker was going to hold the Senate floor for many hours to dramatize his opposition to Trump 2.0 was a bit despairing: Having demonstrated that they no longer have any leverage over the administration and its supine congressional allies, Senate Democrats would now just talk as long as they could, as the chamber’s rules allowed. It wouldn’t change anything, but what was the harm? But now that Democrats everywhere