(NEWS 8) – The longest government shutdown in U.S. history was in the rearview mirror for a couple weeks, but in five days another shutdown could begin, as lawmakers are still trying to come to an agreement on funding for a border wall.

The shutdown started December 22, 2018. Government workers missed two paychecks before it was resolved January 25, 2019.

Lawmakers agreed to a deal that provided a three week reprieve. The deal funded the government through Friday, February 15 and it didn't include any money for a border wall and gave federal workers back pay.

President Trump tweeted Sunday:

Acting White House Chief of Staff, Mick Mulvaney, reiterated another shutdown isn't out of the question:

“So let's say that the hard core left wing of the Democrat party prevails in this negotiation and they put a bill on the president’s desk with zero money or $800 million for the wall, an absurdly low number for the wall. How can he sign that? He cannot in good faith sign that."

There is little appetite for another shutdown on Capitol Hill even within the Republican party.

Sources tell CBS News negotiators are discussing around $2 billion for border security as democrats dispute President Trump's characterization of the southern border.

"The crisis that is claimed, America being under siege or attack, I don't agree with," said House Majority Leader Steny Hoyer.

Lawmakers plan to spend the next week trying to find a compromise that both parties will support.

“I'm absolutely confident that the members of the conference committee are going to come up with a good deal. The question is whether the President will go along with it,” explained Rep. Sean Patrick Maloney of New York.

Negotiations continue Monday and at this point lawmakers seem optimistic a deal will happen by the end of the week.