WSJ:  

A former Trump campaign lawyer who worked on the effort to overturn the 2020 election results has joined the administration to investigate that year’s election and voting-related issues, according to people familiar with the matter.

Kurt Olsen, a lawyer who unsuccessfully pushed claims of voter fraud, has joined the administration as a “special government employee,” some of the people said. The appointment gives Olsen 130 days to work from within the White House without giving up any private business interests. He is talking directly with President Trump, the people said.