Egypt's Muslim Brotherhood is emerging as the strongest force in the country's new democratic politics as Egyptians head to the polls to vote for members of the upper house of parliament.<br /><br />When the voting is finally over, the group's Freedom and Justice party is expected to be the biggest in both houses of parliament. <br /><br />As Al Jazeera's Rawya Rageh reports from the capital, Cairo, Islamists are likely to play a significant role in drafting the country's new constitution.