حزب الكتائب اللبنانية
In 1951 Chader was named vice chairman of the Kataeb Party. Ahead of the 1951 general election a separate Armenian Catholic seat had been instituted. By this time Chader had become the vice chairman of the Kataeb Party. The Armenian Catholic Church reached a deal with the Kataeb Party, to nominate Chader for the new reserved seat. The so-called 'List of Giants' decided not to field an official Armenian Catholic candidate. Henri Pharaon called on his followers to vote for Chader for the Armenian Catholic seat whilst Abdullah Yafi and Sami Solh appealed for a vote for Elie Khayat. Chader won the seat, having obtained 9,660 votes (44%) whilst Khayat got 2,257 votes. Chader was the sole Kataeb candidate able to get elected.