Eliminate Federal Income Taxes for low income seniors

During your 2008 campaign you said that you would eliminate seniors making less than $45,000 a year from filing federal income taxes. This never happened. I will be 76 next month and make less than $45,000 and it is very difficult to survive now days with prices continually going up while my meager Federal Government Retirement income cannot keep up the pace. I retired after 30 years of service in 1988, contracting for the US Navy, when I could afford to live on my retirement income which is no longer the case. I shudder everytime I must pay my Federal and State taxes that I cannot afford. PLEASE give us seniors living on a limited income a break for a change. I was a Republican until you came along and have been a Democrat ever since as I trust you with all my heart to do the right thing.