Think Progress reported a bombshell yesterday that the "U.S." Chamber of Commerce is paying for attack advertisements out the same account that takes donations from foreign companies, likely in violation of campaign finance law.
When Roy Blunt was asked about this, he took out his phone and acted like he was busy:
The Chamber has reportedly spend $324,640 attacking Blunt's opponent Robin Carnahan so far. No wonder Blunt doesn't want to talk about it
h/t FiredUp Missouri.