This is the longest shutdown in US history

The Hartsfield-Jackson Atlanta International Airport is struggling with TSA short staffing.

The airport’s Director of Communications, Elise Durham, told CNN the long security lines happening this morning at the airport are in part due to short staffing at TSA checkpoints.

While the lines are long, they are moving, Durham said. 

Earlier today, the airport's website estimated that wait times to get through security was more than an hour for some checkpoints.

Tim Babcock and Jay Anthony arrived at Atlanta Hartsfield-Jackson International Airport at 7 a.m. for a 10:15 a.m. flight to Dallas. The lines for security were so long that they're winding around inside the airport.

Here's the footage they shot:

Sen. Lindsey Graham said Sunday he advised the President to agree to re-open the government for three weeks, hold negotiations over border security and the wall, and if they ended up failing, then declare a national emergency. 

What this means: Don’t read this as a sign that Graham is fleeing the President’s side — this is far more about Graham understanding that negotiations are more fruitful with a new deadline (or anvil hanging over one’s head) than anything else. That's something that simply doesn’t exist in this current scenario, where there is no deadline — or end to a shutdown in sight.

But it is worth noting that Graham has repeatedly tried to find ways to re-open the government and set the stage for future negotiations over a period of time.

And remember: the President explicitly asked Speaker of the House Nancy Pelosi in the Situation Room if she would give him money for his border wall in a month if he agreed to immediately open the government. Pelosi said no.

As Washington DC is snowed in, shutdown talks are still at a complete and total impasse. It's day 24 of the shutdown, and things are just stuck in the same place as they have been for three weeks. Period. 

Bottom line: The dynamics haven’t changed. Between President Trump and Democratic leaders, someone will have to blink, and neither side is either willing — or, according to key players on both sides, currently has the political incentive — to do so. The expectation at the moment is that this week will be just as fruitless as the last. 

This weekend, CNN's Phil Mattingly polled seven senior GOP and Democratic aides who have been involved in these fights for years about how they thought this would end. While everyone had ideas and theories, not one could give a firm, confident answer on the way out.

The reason why was probably best encapsulated by this, from a GOP aide:  

Amid the longest government shutdown in US history, a majority say President Trump bears more responsibility for it than the Democrats in Congress — and the President's disapproval rating has climbed five points since last month, according to a new CNN Poll conducted by SSRS.

Negotiations between the President and congressional leaders have stalled as neither side seems willing to budge on funding for a wall along the border with Mexico.

That proposal remains unpopular with the public, according to the poll. Overall, 56% oppose a wall, 39% favor it.

President Trump said he is not considering declaring a national emergency, which would to allow him to bypass Congress and obtain funding to build his long-promised border wall, but he maintained that he is legally able to do so.

He again blamed Democrats for keeping the government shut down

"The Democrats should say, 'We want border security.' We have to build a wall otherwise you can't have border security and we should get on with our lives. The Democrats are stopping us and they're stopping a lot of great people from getting paid."

In a new CNN poll, a majority say Trump bears more responsibility for it than the Democrats in Congress.

President Trump, speaking to reporters moments ago, said he's unsure if Republican and Democratic lawmakers are close to a deal to reopen the government, while still demanding funding for border security.

Trump said the Democrats, who now control the US House, "need to do something." (Note: the House has voted to reopen IRS and other financial agencies, despite threats the Trump would veto the legislation.)

"Democrats need to do something. We need their votes. Otherwise we can't solve it. They now control the house. Let's say if they can lead,"

Negotiations to reopen the government have been stalled for more than three weeks. The key sticking point: Funding for President Trump's long-promised border wall.

Trump has repeatedly said that Republicans are unified on the shutdown.

But at least three Republican senators — all up for reelection — have suggested they would break with Trump and support appropriations bills that do not include funding for a wall.

Here's a look at those three:

The ongoing partial government shutdown became the longest government shutdown in US history on Saturday, when it entered its 22nd day.

The previous record dates back to the Clinton administration when a 21-day shutdown resulted from a clash between President Bill Clinton and the GOP Congress that lasted from December 1995 to January 1996.

Today is not the 24th day of the shutdown, and there is still no end in sight to the current shutdown, which has impacted roughly a quarter of the federal government and hundreds of thousands of federal workers.

Here's a look at how other previous shutdowns stack up: