The Catechism of the Catholic Church is clear on the obligation of all citizens to participate in the voting process:
Submission to authority and co-responsibility for the common good make it morally obligatory to pay taxes, to exercise the right to vote, and to defend one's country.
Furthermore, citizens are obligated to contribute to the common good of society:
It is the duty of citizens to contribute along with the civil authorities to the good of society in a spirit of truth, justice, solidarity, and freedom. The love and service of one's country follow from the duty of gratitude and belong to the order of charity. Submission to legitimate authorities and service of the common good require citizens to fulfill their roles in the life of the political community.
However, it is often difficult to know what to do, especially when it appears that there is no clear solution.
At such times, it is most appropriate to pray, and the US Bishops have provided a prayer that we can all join in before an election.
Lord God, as the election approaches,
we seek to better understand the issues and concerns that confront our city/state/country,
and how the Gospel compels us to respond as faithful citizens in our community.
We ask for eyes that are free from blindness
so that we might see each other as brothers and sisters,
one and equal in dignity,
especially those who are victims of abuse and violence, deceit and poverty.
We ask for ears that will hear the cries of children unborn and those abandoned,
Men and women oppressed because of race or creed, religion or gender.
We ask for minds and hearts that are open to hearing the voice of leaders who will bring us closer to your Kingdom.We pray for discernment
so that we may choose leaders who hear your Word,
live your love,
and keep in the ways of your truth
as they follow in the steps of Jesus and his Apostles
and guide us to your Kingdom of justice and peace.We ask this in the name of your Son Jesus Christ and through the power of the Holy Spirit.
Amen.