GAO Congress letter signatories growing and growing

It started with three: Conyers, Nadler, and Wexler.

Then Rush Holt (D-NJ), Melvin Watt (D-NC), and Bobby Scott (D-VA) signed on.

Then on November 17, two additional letters were sent calling for a General Accounting Office investigation of the November 2 irregularities and glitches.

First, a letter adding the signatures of Tammy Baldwin (D-WI), Louise Slaughter (D-NY), and George Miller (D-CA), was sent, increasing the number of signatures to nine. Here's a pdf copy of the letter.

Then, that same day, a second letter --fourth letter overall--was sent to the GAO which added John Olver (D-MA), Bob Filner (D-CA), Gregory Meeks (D-NY), and Barbara Lee (D-CA). That made it 13.

Now, according to Buzzflash, another congressional representative, Jan Schakowsky of Illinois, has asked to become the 14th signatory to the letters to the GAO. That brings it to fourteen. Fourteen Democratic representatives from all over the country, black and white, male and female.

Whither the Democratic senators?