WRAPUP 1-Backers of Iran's Mousavi aim to keep up protests

* Mousavi backers plan new rally in defiance of ban

* Supreme leader Khamenei foresees partial recount

* Obama says Mousavi, Ahmadinejad policies similar

EDITORS' NOTE: Reuters coverage is now subject to an Iranian ban on foreign media leaving the office to report, film or take pictures in Tehran.

By Dominic Evans and Fredrik Dahl

TEHRAN, June 17 (Reuters) - Supporters of Iran's defeated presidential candidate Mirhossein Mousavi aim to keep pressure up with new protests on Wednesday over a disputed poll which has led to the biggest upheaval since the 1979 Islamic revolution.

Despite the authorities' readiness for a partial recount, they plan a fifth day of demonstrations since Friday's poll in which hardline President Mahmoud Ahmadinejad was officially declared to have won a resounding victory.