The conservative CSU is a regional Bavarian party, which plays an important role on the federal level as "sister party" to chancellor Angela Merkel's CDU.
The CSU traditionally has a comfortable majority of around 50 percent in Bavaria. The average age of its 147,000 members is 59, they live mainly in rural areas. CSU leaders are known for their beer-swilling populism, they embrace conservative family policies for stay-at-home moms and anti gay marriage; some are euroskeptic, and the party leadership wants foreigner drivers to pay to use German motorways. This page provides a collection of DW's content the CSU.
The Merkel-led conservative block, the Greens and the market-friendly FDP have until Sunday evening to reach common ground on a possible coalition. The talks have stalled as parties clash on migration and environment.
Chancellor Angela Merkel has won a fourth term in office and the next task of building a coalition is already proving interesting. Here's a look at Germany's political parties: who they are and what they want.
Chancellor Merkel faces a historic task in forging a "Jamaica coalition" of the conservatives, Free Democrats and Greens. The parties have a long way to go to bridge their differences, and have no option but to succeed.
Chancellor Angela Merkel's CDU and Bavarian sister party CSU have discussed a plan for coalition talks with the FDP and the Greens. A CSU proposal to allow only 200,000 immigrants per year has been one issue of debate.
Bavaria's CSU was the most right-wing party in parliament until the populist AfD's recent electoral upset. Bavaria's Deggendorf saw the highest results for the AfD outside of eastern Germany. DW went to find out why.