Senate Minority Leader Mitch McConnell (R-KY) "plans to counter the influx of Democratic spending aimed at defeating him by writing a big personal check," Politico reports. "The Republican leader is loaning his campaign $1.8 million out of his own bank account, exceeding a $1.5 million investment by the Democratic Senatorial Campaign Committee and Senate Majority PAC to bolster the prospects of Democrat Alison Lundergan Grimes."