How do the trends of de-alignment or lower rates of party loyalty and realignment reflect changes in the issues and mobilization of groups into the process?

How do the trends of de-alignment or lower rates of party loyalty and realignment reflect changes in the issues and mobilization of groups into the process?
Discuss the ramifications of changes in levels of American partisanship (party affiliation and identity) on the power of political parties in the present era? How do the trends of de-alignment or lower rates of party loyalty and realignment reflect changes in the issues and mobilization of groups into the process?

How do the trends of de-alignment or lower rates of party loyalty and realignment reflect changes in the issues and mobilization of groups into the process?