President Joe Biden conceded Monday that his administration has not done enough to provide access to coronavirus testing and promised to step up the effort. Earlier this month the Biden administration touted a plan to combat the latest surge that included 500 million free tests. But those test haven't begun rolling out yet, and demand for tests before holiday gatherings set off a rush that depleted stocks in most pharmacies and other locations. "Seeing how tough it was for some folks to get a test this weekend shows that we have more work to do," Biden said during a call with the White House Covid-19 Response Team and several governors. "We're doing it." He said that starting in two weeks private insurance will reimburse people for the cost of at home test, and that the government will provide access to free tests for people without insurance.