US Senate Majority Leader Harry Reid has expressed caution about a short-term debt ceiling increase plan that Republicans in the House of Representatives are working on aimed at ending a budget crisis in Washington.
Reid told reporters after he and other Senate Democrats met with President Barack Obama at the White House that he had yet to see details of the Republican plan.
"Let's wait and see what the House does," Reid said.
He stressed that Democrats will not negotiate on budget issues with Republicans unless a 10-day government shutdown is ended, adding, "Not going to happen."
The US shutdown is but a precursor to a much bigger problem - in a couple of weeks the government, shutdown or not, will run out of cash.
Landmarks across the US have closed as the Congress failed to reach a deal over the budget.