washington president donald trump call congress toughen iran nuclear deal face opposition friday among rank fellow republicans well democrats narrow chance legislation could pass trump announce choose certify tehran comply deal would immediately withdraw republican senators bob corker tom cotton offer outline legislation say would address flaw accord pass measure would set strict restrictions iran immediately revive u.s. sanction impose iran nuclear program tehran deem able produce nuclear weapon within year provide route overcome deficiencies agreement keep administration deal actually make kind deal first place corker chairman senate foreign relations committee say call journalists republicans control congress four-seat edge senate mean measure would need democratic support pass even every member trump party support give republican senator marco rubio say serious doubt corker-cotton plan say would reserve judgment final measure prefer trump abandon deal ultimately leave nuclear deal reimpose suspend sanction president impose additional sanction would serve national interest good decertified deal leave sanction suspend new law leave major flaw agreement place rubio say statement democrats strongly oppose senator ben cardin rank democrat foreign relations panel say would support measure back european ally sign nuclear pact formally know jcpoa anything must consistent jcpoa lead us path violate jcpoa must support european ally tell reuters telephone interview cardin say want full-senate brief plan administration officials committee hear corker acknowledge tough fight ahead say hop win democrats pledge seek support european ally britain france germany sign agreement urge trump decertify bid 'fix iran nuclear deal face uphill climb u.s. congress