President Donald Trump directed his newly installed Department of Homeland Security chief to swiftly pay Transportation Security Administration agents in a bid to reduce long lines at airports, as talks to fund the department collapsed on Capitol Hill.

Senate Majority Leader John Thune said Republicans have sent Democrats a revised proposal to end the ongoing shutdown at the Department of Homeland Security, which has snarled airport security lines around the country and added pressure on the US economy.

President Trump said he would sign an executive order to "immediately" pay TSA officers, who have gone without pay for more than a month. Follow live updates.

Senators are expected to vote Thursday on a proposal to fund the Transportation Security Administration and much of the Department of Homeland Security, excluding Immigration and Customs

A gang of top senators from both parties are engaged in a furious push to reopen the Department of Homeland Security, with GOP leaders describing the current round of talks as their “last and final offer” for Democrats to take the deal.

Senate Democrats blocked a funding bill for the Department of Homeland Security after they could not reach terms on a bill 41 days into its shutdown.

Senate Republicans pitch deal to end DHS shutdown

In a sign of the toll the shutdown is taking, the top official at the TSA told House lawmakers that staffing shortages have led to the "highest wait times in TSA history."