Both Pakistan and the United States are making a sustained effort to overcome difficulties in the bilateral relationship and President Asif Ali Zardari believes that bridging trust deficit is key to making the partnership meaningful, top Pakistani officials said. Presidential spokesman Senator Farhatullah Babar and ambassador to the United States Sherry Rehman said at a briefing that Pakistan wants a relationship of mutual trust and respect with the United States.  They spoke after the Pakistani president’s meeting with Secretary of State Hillary Clinton.“We are trying, they are also trying, to bridge the trust deficit. I hope we will be able to resolve,”  Babar said in response to a series of questions about stalemate in relations between the two countries.