Complex sentence: From time to time, the issue of loyalty to Taiwan is raised--for example, in 2008, during his successful Presidential campaign, the fact that Ma Ying-Jeou had sisters and a daughter who were American citizens.
Split into simpler sentences: From time to time, the issue of loyalty to Taiwan is raised. For example, in 2008, during his successful Presidential campaign, the fact that Ma Ying-Jeou had sisters and a daughter who were American citizens.