Those that do would have some very hard questions for Abbas. Questions that he would not want to answer. Questions about hamas, so called refugees, claims against Israel, recognition of Isreal as a Jewish state, his personal rhetoric, talking to the Israelis in one voice and his Arabs in another. Abbas does not want to talk with the American congress. Abbas wants to talk to South America and the Arab League.
Western-backed Syrian rebels say kill foreign Islamic State (Reuters)