Former Gov. John Hickenlooper, at right, attacked Republican Sen. Cory Gardner, at left, in a new ad released Wednesday. Former Gov. John Hickenlooper attacked Sen. Cory Gardner in a new ad charging that the Colorado Republican is "ready to rush through a Supreme Court justice at lightning speed" rather than address a host of other issues./Credit:	Getty

Former Gov. John Hickenlooper, at right, attacked Republican Sen. Cory Gardner, at left, in a new ad released Wednesday. Former Gov. John Hickenlooper attacked Sen. Cory Gardner in a new ad charging that the Colorado Republican is "ready to rush through a Supreme Court justice at lightning speed" rather than address a host of other issues./Credit: Getty

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Hickenlooper attacks Gardner over Supreme Court vacancy in Colorado Senate race

Former Gov. John Hickenlooper attacked Sen. Cory Gardner in a new ad released Wednesday, charging that the Colorado Republican is "ready to rush through a Supreme Court justice at lightning speed" rather than address a host of other issues.