The original article from July 9, 2020:
THE 320 PEOPLE WITH THE FINAL SAY IN COLORADO'S ELECTION

2020 ELECTION - DO NOT CERTIFY
November 19, 20202

The update from July 20, 2020:
BOULDER COUNTY REPUBLICANS DECLINE TO CERTIFY THE STATE 2020 PRIMARY ELECTION

OTHER IMPORTANT ELECTION INTEGRITY ARTICLES:

DESCRIPTION OF CERTIFYING AN ELECTION
ADVICE FOR THOSE SERVING ON THE CANVASS BOARD
BOULDER COUNTY CANVASS REPORTS FROM 2010 to 2016
DETAILED ELECTION INTEGRITY REPORT

Article by Peg Cage, as Boulder County Republicans Chairman, April 2018
DON'T TRUST COLORADO'S ELECTIONS
FORM: TWO BCR CANVASS MEMBERS DIDN'T CERTIFY 2018

REFUSAL TO CERTIFY THE 2016 ELECTION IN BOULDER COUNTY
WHY BCR DIDN'T CERTIFY 2016 ELECTIONS

Boulder Daily Camera Article 11-21-2014
CANVASS BOARD REFUSES TO CERTIFY BOULDER COUNTY ELECTION RESULTS

Article by Signature Verification Judge in Boulder County 2014 General Election:
CAN THERE BE AN HONEST ELECTION WITH ALL MAIL IN BALLOTS?