U.S. President Obama takes the stage to deliver remarks on Obamacare at an Organizing for Action grassroots supporter event in WashingtonWASHINGTON (Reuters) – The Obama administration will ward off the open enrollment season for Obamacare medical health insurance in 2015 by means of a month to offer insurance firms more time to decide their rates, the White Home said on Friday. (Reporting through Roberta Rampton, Jeff Mason, Steve Holland; Editing by means of Doina Chiacu)