Two months ahead of the November presidential election, Colorado officials are warning that refusal by local election canvass board members to certify results fuels misinformation and threatens voter trust in the entire election process. Republicans on three local canvass boards voted against certifying the June primary results, according to the secretary of state’s office. It is a tiny percentage of the 64 three-member boards in each Colorado county, but it occurred in the context of a growing national movement by conservative activists to use the once mundane, administrative task of verifyin…