Nah, that's too dishonest. There was a debate at the time of the constitution that one third would be enough and it lost (I could go find a link if you like) so clearly you need approval of a majority of Senators.
Consent clearly means approval. We do approval by votes. And since there is no requirement for a supermajority, 51 votes should do it.
No kidding?
Better call John Bolton and inform him he's not the UN ambassador.