• Cable drops to threaten 1.2904 as dollar gains on U.S. tariff-related report

• Trump aides draft proposal for at least 20% tariffs on most imports - WaPo

• 1.2904 was Ldn am low (ensuing rally topped out 1.5 pips shy of 1.2940)

• Britain hopeful U.S. tariffs will be reversed with economic deal

• UK mfg PMI upwardly revised to 44.9. MPC's Greene on inflation expectations

• U.S. March ISM mfg index, Feb JOLTS data due 1400 GMT; 49.5 and 7.616M f/c

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(Robert Howard is a Reuters market analyst. The views expressed are his own)