"It's time to pass a clean continuing resolution and end this shutdown today. No half measures, and no gamesmanship. Put every single federal worker back on the job with full back pay -- today," Amer...

Nearly four weeks into the shutdown, hundreds of thousands of workers are furloughed and missing paychecks.

The question is whether this and other potential breaches in solidarity will have an effect on congressional Democrats, and the answer is unclear.