He arrived at Buckley Air Force Base Saturday night.
In advance of the Democratic National Convention the President is holding a rally on the CU Boulder campus Sunday.
President Obama has spent a good bit of time in Colorado this year.
He was at the Coors Event Center on the CU campus in April. He was also at CSU in Fort Collins earlier this week.
During that speech he criticized the Romney campaign for describing the younger voters as being a lost generation.
The Democratic National Convention starts Monday in Charlotte.
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