I wonder if this person knows that he/she may have violated the law by sending this email out?
I receive a lot of questions about what military members are allowed and not allowed to do when it comes to politics. Federal Law (Titles 10, 2, and 18, United States Code), Department of Defense (DOD) Directives, and specific military regulations strictly limit a military active duty person's participation in partisan political activities.
DOD defines "partisan political activity" as "activity supporting or relating to candidates representing, or issues specifically identified with, national or State political parties and associated or ancillary organizations."
A "Nonpartisan political activity is defined as "activity supporting or relating to candidates not representing, or issues not specifically identified with, national or State political parties and associated or ancillary organizations. Issues relating to constitutional amendments, referendums, approval of municipal ordinances, and others of similar character are not considered as specifically being identified with national or State political parties."
The military wants its personnel to participate in our democratic process -- within limits. DOD encourages active duty military members to vote, and has established several programs to help active duty personnel to register and cast absentee ballots. What career military officer or senior NCO has never had to pull a stint as unit "voting officer," or "voting NCO?" But, when it comes to actively campaigning for a specific political candidate or partisan objective, the military draws the line.
It should be noted that these prohibitions do not apply to members of the National Guard or Reserves, unless they are currently serving on active duty. For the purposes of political activity restrictions, DoD defines active duty as: Full-time duty in the active military service of the United States regardless of duration or purpose, including:
What Active Duty Members Can and Cannot Do
Can - Register, vote, and express a personal opinion on political candidates and issues, but not as a representative of the Armed Forces.
Can - Promote and encourage other military members to exercise their voting franchise, if such promotion does not constitute an attempt to influence or interfere with the outcome of an election.
Cannot - Participate in any organized effort to provide voters with transportation to the polls if the effort is organized by, or associated with, a partisan political party or candidate.
Cannot - Speak before a partisan political gathering, including any gathering that promotes a partisan political party, candidate, or cause.
Cannot - Participate in any radio, television, or other program or group discussion as an advocate for or against of a partisan political party, candidate, or cause.
Can - Join a political club and attend its meetings when not in uniform.
Cannot - Serve in any official capacity or be listed as a sponsor of a partisan political club.
Cannot - March or ride in a partisan political parade.
Cannot - Sell tickets for, or otherwise actively promote, political dinners and similar fundraising events.
Can - Serve as an election official, if such service is not as a representative of a partisan political party, does not interfere with military duties, is performed when not in uniform, and has the prior approval of the Secretary concerned or the Secretary's designee (example, Secretary of Defense, Secretary of the Army, Secretary of the Air Force, ect.).

