Does Boehner have that authority? Who’s in charge of what goes on in the Capital Rotunda?
From the article
The honor requires a congressional resolution or the approval of congressional leaders, according to the office of the architect of the Capitol.
This sounds to me like a situation where the standard honor for a deceased veteran of distinction was offered. Having someone lie in state at the National capitol undoubtedly would greatly increase the security and personnel costs. Only thirty people have been in state at the national capitol since the practice began. While people may disagree on whether Buckles should have this particular honor, being buried at Arlington with full military honors is hardly dissing him.