From a Wall Street Journal story by Siobhan Hughes headlined “Trump Indictment Mystery: Where Is Mark Meadows?”:

Mark Meadows was the White House chief of staff when Donald Trump tried to overturn the 2020 election result, but he plays only a bit role in the document laying out the charges against the former president.

Meadows talked to Trump several times a day, worked at times to reverse the 2020 results as well as to rein in some efforts and, according to congressional testimony, was slow to engage on Jan. 6, 2021, when some Trump supporters stormed the Capitol to stop the election’s certification. The House Jan. 6 committee’s report said Meadows was likely part of a conspiracy with other Trump confidants to block President Biden’s win.