Sen Lisa Murkowski R-AK says even though she opposes Kavanaugh, she will vote 'Present' - so Sen Daines can stay at his daughter's wedding
That is what is known as a "pair" - it used to be a common practice in the Senate when Senators were absent
So while the tally is 51-49 if everyone voted - with Murkowski & Daines not recorded on Saturday, the final vote should be 50-48
One reason Murkowski might know about "pairs" is her father's time in the Senate. Here in 1999, her father was in a 'pair' with Sen Bill Roth R-DE 
This will be the first "pair" in the Senate since - October 23, 2003, when Sen Harry Reid D-NV did a 'live pair' for Sen John Ensign R-NV
For those staying up late tonight, the Senate should be in session through the night. Debate time runs out just before 5 pm on Saturday.
If you're a tourist in DC right now, you can still stop by the Capitol to see the Senate debate
I want to correct this tweet. "Pairs" in the Senate are rare. After a little more research, the most recent 'pair' that I found was June 3, 2014 - Sen Carl Levin D-MI with Sen Cory Booker D-NJ
