Pence is defending the fact containment was never achieved nor was it a priority to this administration at any point of this pandemic.
The George W. Bush and the Barak H. Obama administrations never had to close borders because SARS and Eboli was contained and never effect the health of the American people and never disrupted the American economy.
The CDC and NIH were IGNORED by the Trump administration were ignored for an entire week during the most critical time in this exposure to SARS-CoV-2 THE BEGINNING.
The disaster took hold and the USA borders were closed to China. They are open now, there is freight coming and going between China and the USA. It was later that the borders were closed to Europe and SARS-CoV-2 migrated into New York without barriers. It was more than a month after that the southern borders were closed to South America and long after Miami was inundated by the virus.