The government shutdown has gone on for more than four weeks, with no sign the impasse will end soon. Here's what lawmakers told CBS News they're doing.

Democrats appear to be unmoved by fresh demands from the largest federal employees’ union to reopen the government, a sign that the shutdown stalemate between lawmakers will continue as government workers increasingly feel the pain during the process.

The coming Nov. 1 open enrollment date for Obamacare could be an inflection point in the ongoing government shutdown.

Senate Majority Leader John Thune said talks among rank-and-file senators aimed at ending the government shutdown have ramped up. Follow live updates here.

Congressional Democrats are marching in lockstep into the fourth week of a government shutdown, even as lawmakers brace for what could be the most painful point yet — a cutoff in federal food aid for 40 million people.

Democrats have only hardened their position as the government shutdown enters its 24th day, leaving Republican majorities in Congress with few answers — and many criticisms.

In 1995, President Bill Clinton canceled a trip to Japan during a shutdown. In 2013, President Barack Obama canceled a planned trip to Indonesia and Brunei due to a government shutdown. And during a shutdown in his first term, Trump canceled a trip to the World Economic Forum in Davos, Switzerland.

Senate Republicans cited a call by the American Federation of Government Employees to pass a funding extension in an attempt to pressure Democrats to relent. The effort fell flat.

CNN data reporter Harry Enten discusses the results of new polls from AP-NORC and Quinnipiac on how the public is responding to the partial government shutdown. HARRY ENTEN, CNN: You might think, given that the Republicans are in charge of both the House and the Senate,

CNN chief data analyst Harry Enten marveled at encouraging polling figures for the GOP and concerning ones for the Democrats on Tuesday morning.