Two GOP lawmakers want details on Iran's role in verifying its nuclear facilities.
The Senate will take a procedural vote on a short-term spending bill.
Government funding runs out Thursday at midnight.
Bradford Richardson 09/25/15 06:06 PM EDT
Rep. Daniel Webster unsuccessfully challenged Boehner for the gavel in January.
The senators want to know how the program will be changed.
The Florida Republican was elected as part of the Tea Party wave in 2010.
Passage came a day after Pope Francis exhorted Congress on climate change.
Sanders suggested Republicans would become increasingly "out of touch."
McCarthy is seen as the favorite to succeed Speaker John Boehner (R-Ohio).
The top Senate Democrat praised his relationship with the Speaker.