A Senate Republican leadership source explains that his GOP colleagues are unmoved by yesterday’s photo-op designed to display Democrats’ intent to go nuclear themselves by blocking Senate business should Republicans deploy their nuclear option to prohibit filibusters on judges. He explained that there isn’t much to block given the things Democrats want for themselves. He predicted that appropriations bills would be acted on – “Never stand between a Senator and his asphalt.” The GOP leadership also appears very confident that they have the votes for the filibuster rules change.