Donald Trump's campaign tried to get his rival Republicans kicked off the ballot in Illinois – but the attempt failed when his state chair failed to bring duplicate copies of the required forms. The Guardian has learned that on Wednesday, the last day for candidates to object to signatures submitted by rival campaigns to get on the ballot, chair Kent Gray showed up at the Illinois board of elections a few minutes before it closed. Illinois has some of the toughest ballot access laws in the country, and qualifying for the ballot requires gathering a different number of signatures in...