Almost all jailed former prime minister Imran Khan’s Pakistan Tehreek-e-Insaf -backed winning independent candidates of national and provincial assemblies submitted affidavits to the Election Commission on Wednesday, officially joining the Sunni Ittehad Council, the Dawn has reported. On Monday, PTI had said that the party-backed independent candidates, who won the February 8 elections, will join the right-wing Sunni Ittehad Council, …