It’s four weeks until Election Day and Donald Trump is doing his utmost to dig Republicans out of their polling hole. In theory, anyway. Trump has been rallying through red states – Alabama, Oklahoma, Texas – to try and secure existing Senate seats. But today’s Democratic pile-on concerns a throwaway comment he made last night in Nebraska. Mid-weave, of course. The President said: “It’s a small price to pay for keeping the world safe, keeping our country safe. They could take out a city… ‘let ’em, let ’em take Los Angeles, let ’em take out San Diego, that’s…’ this is...