Paul Ryan says won't run for US president in 2016

Republican US congressman Paul Ryan, the 2012 vice presidential nominee, said Monday he will not run for president in 2016. "After giving it a lot of thought, I've decided not to run for president," Ryan said in a statement. Ryan earlier Monday told NBC News he was "at peace" with his decision to not seek the White House. The nine-term congressman's bowing out comes after his former partner on the ticket, 2012 Republican nominee Mitt Romney, told donors Friday that