International Business Times
| Chancellor Angela Merkel will both win and lose the German election
The reason why a Grand Coalition is the most likely option is that support for the FDP has been withering among German voters and the FDP recently lost in Bavaria's regional elections, where they were trounced by Merkel's Bavarian allies, the Christian Social Union (CSU).
Stephen Adams, a partner at London-based political consultancy Global Counsel and an expert on Germany, agrees that a Grand Coalition is the most likely outcome of voting on the 22 September.
However, he thinks that a coalition between the Green Party and Merkel's CDU is the second most likely option after a Grand Coalition between the CDU and the Social Democratic Party (SPD), Germany's main left-wing party.