Insurgent Republican presidential candidate Ted Cruz swept Colorado’s GOP convention Saturday, taking 13 additional delegates to rack up all 37 from the state, according to local reports.

Cruz’s superior ground game forces pummeled Republican front-runner Donald Trump’s limited attempts at gaining delegates. The convention in Colorado has made headlines for the Trump campaign’s inability to run a conventional operation dependent on traditional political machinations, as opposed to the New York billionaire’s overwhelming personality and earned media advantage…

Ryan Call, a former chairman of the Colorado GOP who ran as an unbound delegate, told the Washington Examiner that the Trump campaign didn’t do the amount of organizing required to win the state.

“He has really failed to build any legitimate ground game or campaign infrastructure in the key states,” Call said.