DENVER (AP) — Local and national experts, election judges, Republicans and Democrats agree that Colorado's mail-in voting system is safe. That's despite efforts by President Donald Trump to question the system's security.

The Denver Post reports no single person or party controls any portion of the process. Checks, balances and redundancies guard against fraud, interference and innocuous errors.

There are thousands of different ballots for each election because school, municipal, statehouse and other political districts overlap. Each county has different measures and candidates but also different ballot designs.

Secretary of State Jena Griswold says that makes it nearly impossible to imitate should someone want to sway an election using false ballots.