The trend is when the Imaams of the Haramain are touring other countries then they are given the Imaamat of Esha Salaat in the Masajid. Is it not the right of the appointed Imaam to lead all Salaahs no matter how big a Shaykh, Imaam, Mufti might be present in the congregation? Is it not the right of a local to perform Imaamat over a traveller?