Trump, Pence have not had contact with infected Pence staffer recently  

• "This morning we had someone on the vice president's staff test positive and so out of abundance of caution we went back and looked into all the person's contacts most recently,"

"This morning we had someone on the vice president's staff test positive and so out of abundance of caution we went back and looked into all the person's contacts most recently," the official told reporters traveling with Pence to Iowa, according to a media pool report.

The official said the staffer may have been in contact with six people who were scheduled to travel on Friday with the vice president and they were removed from the flight before it departed.