The United States has been at the fore of an international campaign to force Mr. Maduro from power since disputed elections in 2018. It is one of the few foreign policy priorities that has been advanced by both the Biden and Trump administrations, each of which recognizes Juan Guaidó, the opposition leader and former head of Venezuela’s National Assembly, as the country’s legitimate leader.
But one of the officials who briefed reporters on Monday on condition that he not be identified said the Biden administration was reviewing whether to lift a raft of economic sanctions that experts believe have cost Venezuela’s government has much as $31 billion since 2017.
The official said that review would assess whether the economic pressure exacted against Mr. Maduro and his government was worth the risk of exacerbating the dire living conditions for Venezuelans.
The new protections were welcomed by Democrats and Republicans in Congress who had appeared divided on the approach to immigration policy under Mr. Trump.
Senator Marco Rubio, Republican of Florida, said he supported the protections, although “it is critical that we continue working with our democratic allies to secure a Venezuela free from tyranny and ensure this temporary status in the U.S. does not become a permanent one.”
Senators Bob Menendez of New Jersey and Richard J. Durbin of Illinois, both Democrats, noted that earlier efforts to allow Venezuelan immigrants to remain in the United States were blocked by the former president’s supporters in Congress.
“For years, the world watched in horror as man-made humanitarian and political crises turned Venezuela into a failed state,” the senators said in a joint statement. “Despite these disastrous and dangerous conditions, Venezuelans were still forcibly deported back to their country by the Trump administration.”