WASHINGTON — An FBI investigation launched in the wake of the the 2020 election scrutinized nearly 100 Republican and GOP-aligned groups or people — including Turning Point USA, co-founded by slain conservative activist Charlie Kirk, unclassified bureau files released Tuesday show. Senate Judiciary Committee Chairman Chuck Grassley (R-Iowa) published files related to the probe — codenamed “Arctic Frost” — during a panel hearing, saying the records revealed “Arctic Frost was much broader than just an electoral matter” and that the investigation “expanded to Republican organizations.” “Some examples of the groups the [Christopher] Wray FBI sought to place under political investigation...