Among the suggestions is that the deal include provisions to preserve a two-state solution.
Feinstein was a Washington trail-blazer who among other accomplishments became the first woman to head the influential Senate Intelligence Committee.
Menendez, one of two senators representing New Jersey, stepped down from his role as chairman of the Senate Foreign Relations Committee, as required under his party's rules.
Menendez has stepped down temporarily from his role as chairman of the powerful Senate Foreign Relations Committee.
The officials sent a letter to members of the Committee on Foreign Relations as Netanyahu headed to the US for the UN General Assembly.
Pelosi, a Democrat who twice served as House speaker, is the first woman to hold the position that is second in line for the presidency if the president is incapacitated.
Michigan State Senator Sylvia Santana said that she "should have exercised better discretion" before going on the trip.