Chambers USA has continually recognized Toner as a top-tier election law attorney and refers to his experience as "unique and valuable."

They say that he "calibrates risk, practicality and the law better than 99% of other outside counsel" (2016); and that "his background of government service gives him great insight into the workings of the Federal Election Commission and the way it thinks" (2014).

In 2019, Chambers USA further praised Toner, saying "he continues to co-lead a vibrant Practice Group while being an active author and maintaining high visibility among peers and media" (2019).

His work there included advising political committees and corporate clients on federal and state election law compliance.

He was also involved in a number of First and Fourteenth Amendment appellate litigation matters, including two cases that were successful in the U.S. Supreme Court.