The campaign does not = Trump specifically, the campaign = Manafort and Flynn. Why hasnt he denied telling Trump he was not under investigation?
"any links between individuals associated with the Trump campaign and the Russian government "
1.Trump is associated with the Trump campaign.Not only is he associated with it,he's the head of it.
2.Comey might have told Trump he was not under investigation.Police,feds and prosecutors lie to suspects all the time.The Supreme Court say they can.