evidence: Trump falsely claims 'poll watchers' blocked from observing early voting sites in Philadelphia [...] President Donald Trump falsely claimed Tuesday night that "poll watchers" were blocked from entering voting locations in Philadelphia, bringing back to the forefront the legal battle his campaign and the Republican National Committee have been waging in Pennsylvania since late June. [...] "I'm urging my supporters to go into the polls and watch very carefully because that is what has to happen. I am urging them to do it. As you know, today there was a big problem. In Philadelphia, they went in to watch, they were -- they are called poll watchers. A very safe, very nice thing. They were thrown out. They weren't allowed to watch. You know why? Because bad things happen in Philadelphia. Bad things," Trump said during the final minutes of the debate, hours after he tweeted a similar claim, alleging "corruption" was the reason.