The best defense is a good offense or in this case a classic disinformation campaign using the WH platform. If as claimed, the Trump campaign did not have any connections with Russian operatives then it would behoove Trump and his cabinet to cooperate with the investigations. All of America benefits when outside interference is negated.
One can only wonder why all the resistance to uncover the true facts and the attempts to keep changing the rhetoric. Spicer must have the world toughest job trying to explain and cover for his boss.