US$2.56, 66% to Democrats, while oil conglomerate ExxonMobil donated US$2.66 million, 88% to Republicans. Since 1990, Squire Patton Boggs contributed US$14.12 million to federal campaigns, and since 1998 spent US$2.72 million on lobbying. The 2014 Vault.com survey of more than 18,800 associates ranked Patton Boggs as having the best record for pro bono work in the country, and the firm was among the prestigious white-shoe law firms. Following its involvement in a lawsuit with Chevron in Ecuador, Patton Boggs underwent layoffs and partner exits in 2013 amid a 12% drop in revenue, and entered merger talks with Squire Sanders in 2014. The firms announced that they would merge on June 1, 2014 under the name Squire Patton Boggs, adding 330 lawyers to the firm's existing headcount. Squire Patton Boggs now maintains one of the largest lobbying practices in Washington, D.C., gaining extensively from the merger with Patton Boggs, which was the largest US lobbying firm by revenue between 2003 and 2013. Squire Patton Boggs As a result of the merger, Patton Boggs closed its Anchorage, Alaska office, and a number of high-profile attorneys left the firm, including Benjamin Ginsberg and two other prominent Republican lawyers who joined Jones Day, and a number of healthcare-policy lawyers who joined Akin Gump. The combined firm adopted Squire Sanders' existing merit pay system for partners over Patton Boggs' more traditional "eat what you kill" system. Partner compensation under the merit system ranges from US$300,000 for some non-equity partners to US$3 million for the three most highly compensated partners. The firm currently posts an abnormally high leverage ratio, with almost eight lawyers to every partner, according to its 2014-end-of-the-year numbers for full-time lawyers. The D.C. offices of Squire Sanders and Patton Boggs recently moved into the same building, previously the long-standing home of legacy Patton Boggs. The combined firm kept separate revenue pools for its two legacy partnerships from the June merger until the end of 2014, but these are now unified. In 2016, the firm announced a merger with San Francisco-based disputes and compliance boutique Carroll, Burdick & McDonough, adding 50 lawyers in California, China, Hong Kong, and Germany, including a new office near Stuttgart, in Böblingen. In July 2016, the firm opened an office in Darwin, NT, Australia as part of its Asia-Pacific practice group. The firm announced that effective 1 January 2017, Fred Nance would become Global Managing Partner of Squire Patton