Sanders hits Clinton adviser for saying she needs to 'shake some sense' into Iowans
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A spokesman for Democratic presidential candidate Bernie SandersBernie SandersThe Hill's 12:30 Report Five takeaways from the Montana special election Hillary Clinton targets troubled Trump, divided GOP with new PAC MORE slammed an adviser to rival Hillary ClintonHillary Rodham ClintonClinton: ‘I don’t die’ despite the right’s ‘best efforts’ Clinton: Comey firing is ‘an effort to derail and bury’ Russia probe RNC slams Clinton speech as example of 'why she lost' MORE for saying she had delivered a speech meant to "shake some sense" into Iowans. 

Michael Briggs called the statement, which was attributed to a Clinton adviser by CNN, a "strange" way to gain support.

"This is a strange way to appeal to Iowans who already have a lot of common sense," Briggs said in a statement Thursday to CNN. 

"That's why they picked Barack ObamaBarack ObamaWhite House considering vetting Trump’s tweets: report Clinton knocks Trump inauguration crowd size claims Convicted ex-coal exec appeals case to Supreme Court MORE in 2008 and that's why we are confident they will caucus for Bernie on February 1."

In the speech on Thursday, Clinton criticized the Vermont senator's policies and questioned many of his ideas, saying "theory isn't enough. A president has to deliver in reality," according to CNN. 

"Sen. Sanders doesn't talk much about foreign policy, but when he does, it raises concerns," Clinton said. "Sometimes it can sound like he really hasn't thought it through."