Mandatory credit: Joe Biden/YouTube President-elect Joe Biden is warning of massive damage done to the national security apparatus by the Trump administration and roadblocks in communication between agency officials and his transition team that could undermine Americans' security. During remarks Monday in Wilmington, Delaware, Biden said his team has faced "obstruction" from the "political leadership" at the Defense Department and the Office of Management and Budget as they've sought to gather necessary information to continue the transition of power.