"Poilievre's office says it has 'no knowledge' of interference."
"CSIS did not advise the Conservative Party of Canada of any intelligence suggesting there was foreign interference in the leadership contest."
Of course not! He's not allowed to see the reports. CSIS doesn't share intel with randos.
"Common sense" is another way of saying "flying by the seat of your pants." Combine that with the willful ignorance on display by not getting security cleared.