According to Marshall’s most recent Federal Election Commission records filed in July, no one working for Marshall’s campaign had received a paycheck in the past five years — a situation that campaign finance experts said was potentially unprecedented in the modern era of politics. But according to Marshall’s chief of staff, Brent Robertson, the campaign now does have some paid staff, though he declined to offer evidence or details, such as how many people were being paid or when their employment began. Still, campaign experts say the situation raises questions about the line between Marshall’s campaign and his taxpayer-funded Senate office.  In a joint investigation, Kansas Reflector and MS NOW obtained audio recordings, photos, videos, screenshots of text messages and calendar items from 2020 — when Marshall first ran for his Senate seat — that appear to show the senator and his top aide repeatedly using congressional staff and government resources in ways that experts say likely crossed the line between official business and campaigning.