Latest "Jan. 6 riot" stories
More coordination with Pentagon leaders is one of many security reforms put in place over the last year.
Coffman, an Army veteran who served two tours in Vietnam, was arrested after police found multiple guns and incendiary devices in his pickup.
The House Veterans' Affairs Committee on Wednesday held its first in a series of hearings on the issue of extremism in the veterans community.
The House Veterans' Affairs Committee will hold a hearing on the issue on July 29.