Report: Illegal Immigrant Population on the Rise Under Barack Obama

A new estimate of illegal immigrants living in the United States indicates that the numbers have grown since Barack Obama took office.

Based on preliminary data used by the Department of Homeland Security, the Center for Immigration Studies estimates that 10.9 million illegal aliens were in the United States on Jan. 1, 2011.

That number -- up from 10.8 million -- reverses a decline of roughly 1 million registered during the last two years of the Bush administration.

Contrary to claims by the Obama administration, the Washington, D.C.-based CIS said border control and interior enforcement are lagging.

"Although Congress has allowed money for more fencing and border control, the Government Accountability Office concluded in 2011 that the Border Patrol has 'operational control' of only 44 percent of the border, only 15 percent of which is under 'full control,'" the CIS report stated.

"The administration has suspended worksite enforcement operations in favor of only auditing employer records, resulting in few fines -- mainly warnings," the report added.