Former FBI Director James Comey could testify before Congress next week, sources say

The former FBI Director's interactions with Trump have been scrutinized.

Senators specifically want to know if the president sought a pledge of loyalty from the Comey early on --- and if Comey was pressured to go easy on former National Security Adviser Michael Flynn.

Mueller has not objected to Comey testifying, provided that he does not discuss specific evidence connected to the investigation into Russian meddling in the 2016 election, according to sources.

Comey, according to sources familiar with his thinking, wants to be transparent and will respond to questions about his relationship with Trump.

John Parkinson, Mariam Khan, Ben Siegel, and Geneva Sands contributed to this story.