It's not personal against Ron Paul. They would say the same thing if it was a veteran's march for Mitt Romney or Newt Gingrich. Political activism by contractually bound veterans is highly regulated and abridged. It's even illegal for commanders to tell troops to vote democrat or republican, even if the vast majority tend to be republican. All they can do is encourage folks to vote (a tall order since most troops fall within the under age 45 category that is the worst about not voting).
So, don't get your conspiracy panties up in a bunch. This is standard procedure. What would be disturbing is if they only SELECTIVELY tried to enforce this rule. THEN something fishy is going on.
My conspiracy panties are in a bunch because we are told time and time again that the military is fighting for our freedom. So it's okay for people to think they are fighting for our freedom on some foreign battle field, illegally, but not okay, domestically, fight for our freedoms as per the First amendment?
"I, _____,
do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; and that I will obey the orders of the President of the United States and the orders of the officers appointed over me, according to regulations and the Uniform Code of Military Justice. So help me God." (Title 10, US Code; Act of 5 May 1960 replacing the wording first adopted in 1789, with amendment effective 5 October 1962).
"I, _____ (SSAN), having been appointed an officer in the Army of the United States, as indicated above in the grade of _____
do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic, that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office upon which I am about to enter; So help me God." (DA Form 71, 1 August 1959, for officers.)
Well I support our troops 150% by marching in DC (The District of Criminals), they are actively fighting for our freedom domestically where it should be!! What this proves to me is the Pentagon doesn't really support the troops, it's all an illusion!