Original sentence: And the frequency that Rasmussen is able to turn them around -- because they're based on robocalls -- gives them added value in terms of teasing out trends.Networks such as MSNBC simply do not use Rasmussen polls
Edited sentence: " MSNBC does not use Rasmussen polls.And the frequency that Rasmussen is able to turn them around — because they're based on robocalls — gives them added value in terms of teasing out trends