Turkey's Gul and Erdogan bicker over "double-headed" government

ISTANBUL (Reuters) - Turkey's President dismissed suggestions by Prime Minister Tayyip Erdogan that he had exceeded his authority over the handling of a banned protest march, highlighting increasingly open differences between the two.

Erdogan, who has dominated Turkish politics for a decade and overseen unprecedented economic growth, is widely expected to stand for a newly-created powerful executive presidency at elections in 2014. Recent polls, however, present Abdullah Gul as the more popular figure, though he has not expressed any intention to run for the new post.