Talks around negotiating an end to the partial government shutdown apparently went nowhere, after a meeting among congressional aides and Trump administration officials concluded at the White House Saturday afternoon, and were expected to continue Sunday.

Vice President Mike Pence, who hosted the discussion, said Saturday over Twitter that the talks were "productive" but would continue over the weekend, and President Donald Trump said that "not much headway" was made.

The meeting came as Democratic lawmakers and President Donald Trump battle over a budget bill that has been held up over bickering about a border wall between the U.S. and Mexico. Trump says he won't take less than $5.6 billion to fund the wall, which was a central campaign promise in the 2016 election when he vowed to make Mexico pay for the structure.

Democratic leadership has balked at the idea of funding the wall, but has offered money for other border security measures.

The Saturday talks came after Trump said a day earlier that the partial U.S. government shutdown could last months or over a year, and that he could use emergency powers to get the wall built.

In addition to the vice president, other White House officials attended, including Kirstjen Nielsen, Secretary of Homeland Security, and Jared Kushner, adviser to the president.

Earlier on Saturday, Trump also repeated his assertion without evidence that most the affected federal workers belong to his opposition party, the Democrats.

"I don't care that most of the workers not getting paid are Democrats," said Trump. "I want to stop the Shutdown as soon as we are in agreement on Strong Border Security!"

Trump then called on Democratic leaders to collaborate on a plan to reopen the government.

Before issuing an order to freeze pay for many federal workers a week ago, Trump also claimed that most of those working without pay or on furlough are Democrats.

The shutdown is entering its third week and has thrown the livelihood of some 800,000 federal workers into uncertainty and disrupted a variety of public services including parks and libraries, airport security screening and immigration courts. 

About half the affected federal employees are working without pay, including Coast Guard service members and law enforcement and public safety officials such as FBI agents and forest service firefighters, according to a Democratic report on the shutdown. The other half -- including civil servants at the Food and Drug Administration, State Department, and even NASA -- cannot report to work and risk missing paycheck, according to the report.

House Speaker Nancy Pelosi, a Democrat of California, said over Twitter Saturday that House Democrats "will begin passing individual appropriations bills to re-open all government agencies, starting with the Department of the Treasury & IRS - an action necessary to make sure working families receive their tax refunds on schedule."