The U.S. Federal Communications Commission’s inspector general said there was no evidence of impropriety relating to the proposed, and now defunct, merger of Sinclair Broadcast Group and Tribune Media Co, concluding FCC Chairman Ajit Pai had not shown bias in favor of the deal.

According to its report released on Monday, the Office of Inspector General said there was “no evidence, nor even the suggestion, of impropriety, unscrupulous behavior, favoritism toward Sinclair, or lack of impartiality related to the proposed Sinclair-Tribune merger.”

U.S. Representatives Elijah Cummings and Frank Pallone, Democrats, asked the FCC inspector general last November to probe whether Pai was biased in favor of Sinclair, which had sought approval of a $3.9 billion acquisition of Tribune. Sinclair announced on May 8, 2017, that it wanted to buy Tribune’s 42 television stations in 33 U.S. markets and cable network WGN America.