Simplify the following text for a Grade 9 native English-speaking person.
Original: Since there was strong support on the part of some members of the Zionist leadership , however , peace was kept in the movement by the time-honored parliamentary maneuver of voting to establish a committee for the investigation of the possibility , which was not finally dismissed until the 7th Zionist Congress in 1905 .
Simplified: Because some members of the Zionist leadership liked the idea , however , peace was kept in the movement because they voted to start a committee to look at the possibility . They did not officially say no to the idea until the 7th Zionist Congress in 1905 .