you are live in the cnn newsroom. i m jim acosta in washington. good evening. we re only one year out from election day, and already there are warning signs for president biden in his bid for re-election. a new set of polls from the new york times and sienna college show biden trailing former president donald trump in hypothetical matchups in four key swing states. you see them there on-screen. trump appears to have an edge in nevada, georgia, arizona, and michigan, all critical states that could hand the election to the former president. but legal problems continue to pile up for donald trump. tomorrow he is expected to have to answer to some of these serious allegations of fraud that he s facing. he s set to take the stand in new york for a civil trial that could determine the fate of his business in that state. so one year from election day, how worried should the white house be about these low poll numbers for joe biden at this stage of the campaign? cnn s senior data