The Trump administration abruptly declined to renew a contract for a cybersecurity firm it hired to examine voting equipment in Puerto Rico after the company didn’t echo administration officials’ false claims of voter fraud, the firm’s executives said in their first extensive public remarks on the episode.

Cybersecurity executives described the political pressures that emerged when their findings did not support claims of election manipulation.

The Trump administration abruptly declined to renew a contract for a cybersecurity firm it hired to examine voting equipment in Puerto Rico after the company didn’t echo…