Original sentence: According to Sourcewatch, since the 1990s Brookings "has taken steps further towards the right in parallel with the increasing influence of right-wing think tanks such as the Heritage Foundation.Media outlets have variously described Brookings as centrist, conservative, liberal, center-right, and center-left.The media watchdog group Fairness and Accuracy in Reporting, which describes itself as "progressive", has called Brookings "centrist", "conservative", and "center-right"
Edited sentence: Media outlets have variously described Brookings as centrist, liberal, center-left, and left-leaning.org, a progressive left-leaning organization, has described it as conservative and center-right