 Later that month, Bush visited Moscow, where he and Gorbachev signed the START I treaty, a bilateral agreement on the reduction and limitation of strategic offensive arms, after ten years of negotiation.At the 28th Communist Party Congress in July 1990, hardliners criticized the reformists but Gorbachev was re-elected party leader with the support of three-quarters of delegates and his choice of Deputy General Secretary, Vladimir Ivashko, was also elected.Seeking compromise with the liberalizers, Gorbachev assembled a team of both his own and Yeltsin's advisers to come up with an economic reform package