An organization funded by liberal billionaire George Soros and chaired by Democratic Sen. Elizabeth Warren's daughter is fighting lawsuits brought forth by election integrity groups in a number of cities. Demos, a New York City-based progressive public policy organization, is assisting unions in pushing back against election lawsuits filed in North Carolina and Florida. The group is also writing letters of interest in another lawsuit in Pennsylvania. Amelia Warren Tyagi, Warren's daughter, chairs the board of Demos. The Public Interest Legal Foundation, an Indiana-based legal group that litigates to protect election integrity, filed a lawsuit against Wake County, N.C., on...