Betsy DeVos is now under investigation for Hatch Act violations, stemming from a Fox News interview.
Koch brothers David Koch platform
The phrase “Koch brothers” generally refers to the sons of Fred C. Koch. The most politically active sons were Charles Koch and David H. Koch who bought out their brothers
Fred Koch was a founding member of the John Birch Society. In the 1960s, Charles Koch opened a John Birch Society bookstore with Bob Love, a friend of his father. At the time, the Society was campaigning against the civil rights movement, calling for the impeachment of Chief Justice Earl Warren, who had ordered public school desegregation in Brown v. Board of Education, and accusing President John F. Kennedy of “treason” in ads shortly before his assassination. 
Charles and Love didn’t resign from the Society until 1968. The split was reportedly due to disagreement’s about the Society’s support for the Vietnam War.
Charles shared his isolationist position with Robert LeFevre’s all-white “Freedom School,” which he funded and on whose board he sat. Charles had also encouraged his brother, David, to attend a Freedom School retreat, according to Sons of Wichita.
Since at least 2006, the Koch brothers have hosted semi-annual meetings for wealthy right-wing donors, sometimes referred to as the Koch network. While these gatherings are carefully guarded, occasional leaked documents and recordings have revealed that they include “titans of industry — from health insurance companies, oil executives, Wall Street investors, and real estate tycoons — working together with conservative journalists and Republican operatives,” as well as prominent public officials, including members of Congress, state governors, and even Supreme Court Justices Clarence Thomas and Antonin Scalia. The meetings involve fundraising, reportedly in the millions of dollars, as well as discussions about political strategy.
- 4.3 Bankrolling the Tea Party
- 5.1 “Triad” Campaign Finance Scheme Avoids Disclosure Laws, 1996
- 5.2 The Koch Donor Network
- 5.3 Building a Post-Citizens United $400 Million Dark Money Web
- 5.4 Koch Funded Dark Money Groups Investigated and Fined in California
- 5.5 Involvement in Scott Walker Race and Recall Election in 2010
- 5.6 2012 Post-Election Audit
- 5.7 Future Commitment to Politics