'Intense' US blizzard derails final leg of Republican caucus campaigning in Iowa
                        
                                                    
                                
                                
                                
                                
                                
                                    Plunging temperatures, whipping wind and buckets of snow derailed the final stretch of caucus campaigning in the US state of Iowa Friday as Republican presidential hopefuls delivered their last pitches to voters.                                
                            
                        
                        
                                                    
                        
                        
    
    
        
            
            
        
        
    
                        
                            Plunging temperatures, whipping wind and buckets of snow derailed the final stretch of caucus campaigning in the US state of Iowa Friday as Republican presidential hopefuls delivered their last pitches to voters.