On September 25, 2013, the Kindle Fire HD was upgraded as the third generation Fire, priced at US$139, and the Kindle Fire HDX was introduced. The Kindle Fire HDX had an improved graphics engine, double the memory, and triple the processor speed of the previous model.
Washington, wary of the dangers posed by an individual's becoming entrenched in the presidency, created a two-term tradition that remained intact until Franklin Delano Roosevelt's third consecutive election in 1940.
Roosevelt refused to give a definitive statement as to his willingness to be a candidate again, and he even indicated to some ambitious Democrats, such as James Farley, that he would not run for a third term and that they could seek the Democratic nomination.