Some brief thoughts.
Christians should be involved in politics, just like they should be plumbers, teachers and other parts of society. Like salt….
Moral issues are important in politics. Caring for the poor, the disadvantaged, the refugee, the stranger…these are all moral issues. It is a shame that the Christian lobby does not focus on these pressing moral issues more than the ones they are known for. Jesus is our example. What did he speak against? Greed, hypocrisy, lack of compassion.