The GFL really keeps focused on their aims. Thus they did not run for the mayor elections in 2009.
Their primary aims are:
to be one of the three strongest parties in the council of Lünen
to decrease the votes of CDU and SPD to under 50% (beforehand SPD and CDU had about 80% of the votes altogether)
to redeem the coalition of SPD and CDU in Lünen
To achieve those aims it was necessary to concentrate on the local elections rather than to waste energy on any other targets. This shows, that the GFL is really interested in improving their local environment and not to gain an much power for themselves as they possibly can.
Impressively they were quite successful in the elections in 2009. Remember, they formed in December 2007. When the council of Lünen was elected in August 2009, the GFL already achieved 13,1% of the votes. These were the first elections they took part in and they already were among the three strongest parties in Lünen: