Just hours ahead of their first one-on-one debate, Donald Trump and Hillary Clinton are deadlocked in a new poll on key swing states. The CNN/ORC poll shows the candidates are nearly tied in Pennsylvania and Colorado. In Pennsylvania, likely voters favor Clinton at 45 percent and Trump at 44 percent. Libertarian Gary Johnson and Green Party candidate Jill Stein follow with 6 percent and 3 percent, respectively. Colorado’s likely voters are supporting Trump at 42 percent, with Clinton just behind at 41 percent. Johnson measures higher at 13 percent, with Stein trailing at 3 percent.