There are a whole lot of Republicans waking up to a very ugly reality this week—they're running on a ballot that's got Donald Trump's name right there at the top. For all those Senate Republicans up this cycle, it's a nightmare that they somehow think they can stave off by pretending it isn't so, a contorted mix of pledging party loyalty and refusing to acknowledge the party's standard-bearer. Not one Senate Republican up for reelection this November has openly, unreservedly endorsed Trump, a stunning situation for a party's nominee.