Well with Republicans in charge of all 3 branchs, what have we now?
Pubs do not hold a majority in the senate that allows for cloture votes to happen whenever pubs want it to, thus there is no control of the Senate as you describe it.
Minority controls the vote in the senate so long as they can come up with 40 votes.
More than 50 votes in the senate is not always enough to see a measure passed.