"To monitor the election" means to carefully watch and oversee the voting process to ensure it is fair, transparent, and free from any illegal or dishonest practices. Full definition
Numerous local organisations will monitor the elections for fairness. (news.bbc.co.uk)
This wasn't just because of the next monitor election; the children themselves wouldn't put up with it. (bookbrowse.com)
His interest in human rights led to his involvement in monitoring elections in war - torn countries such as Namibia and Bosnia as part of the international efforts to establish democratic governments in these countries. (slaw.ca)