Reid said Democrats were mulling a procedural tactic on the Supreme Court nominee.
Kaine calls voting a "sacred act."
But Sessions said he doesn't believe that's what Trump meant.
The senators outlined more than a dozen questions for Kerry.
The Republican senator said she can't vote for her party's nominee.
The DSCC pledged the standstill would have political consequences for Republicans.
Republicans are hoping to use the $400 million cash payment to Iran as a campaign issue.
The Judiciary chair says he has concerns about "ransom payments to terrorist groups."
Democrats blasted GOP senators for refusing to cut ties with Trump.
Republicans have blasted new details on the payment.