do you think colorado is a state that will do this? i think it will be close. bret: the first of three presidential debates will be held wednesday. just up the road from here at university of denver. for senior national correspondent john roberts is tonight. ahead of the debate. romney is shifting the focus under a withering critique from fellow republicans he is making the campaign less referendum on the president, more a choice between who has the best policies, to lead the nation in the future. i represent a different course. i make sure young people have great jobs tomorrow and bright and prosperous future. that is the difference between us. wednesday s debate will focus on domestic policy. romney continues to hamer the president for what he calls a failed foreign policy? an op-ed in today s op-ed journal, romney declared the president is weakening the america s position in the world writing, by failing to maintain the element of our influence and by stepping away