Are they voting on the nuclear option now?
The nuke has been armed.
Now taking the cloture vote again, this time a simple majority is sufficient to limit debate.
Yes, in a sense. It’s a weird vote. Basically McConnell says ‘I want to do away with the filibuster rule’. The Senate President has to say ‘No, you can’t’. So now McConnell says I want to vote to ‘overrule’ the Senate President’s objection. He’s says, ‘Do you support the Senate President’s objection’. So it’s the NO votes that count, not the YES votes. If the NAYS prevail, the Senate President is overruled and McConnell can kill the filibuster.
Voting to end debate.
That is already concluded with success. Now voting on cloture, which now requires simple majority.