President Joe Biden already had a narrow path to reelection. Now, his disastrous debate performance could put more states in play for former President Donald Trump.Andrew Harnik/Getty ImagesPresident Joe Biden already had a narrow path to reelection before his disastrous debate.But if the bottom drops out, Democrats could be fighting to defend states like New Mexico or Virginia.At that point, former President Donald Trump's victory would be almost a foregone conclusion.President Joe Biden's already narrow path to reelection is getting even harder to navigate.Biden's best-case scenario before last week's disastrous debate likely required him to run the table in Michigan, Wisconsin, and Pennsylvania, while holding on to Nebraska's Omaha-based 2nd Congressional District.