Here is what the U.S. Conference of Catholic Bishops (USCCB) gave as catechesis and guidance…I think it universal guidance for all Catholics…who want to be faithful disciples of Christ…in communion with their Local Church’s Bishop and the Magisterium of the Universal Church:
"Responsible citizenship is a virtue,
and participation in political life is a moral obligation."
–** Forming Consciences for Faithful Citizenship**
By our baptism,** Catholics are** committed to following Jesus Christ and to be “salt for the earth, light for the nations.” As the Catechism of the Catholic Church reminds us, “It is necessary that all participate, according to his position and role, in promoting the common good. This is inherent in the dignity of the human person … As far as possible citizens should take an active part in public life” (nos. 1913-1915).
[INDENT]Forming Consciences For Faithful Citizenship - Table Of Contents
Part I - The U.S. Bishops’ Reflection on Catholic Teaching and Political Life
Part II - Applying Catholic Teaching to Major Issues: A Summary of Policy Positions of the United States Conference of Catholic Bishops
Part III - Goals for Political Life: Challenges for Citizens, Candidates, and Public Officials
Major Catholic Statements on Public Moral Issues
Its a PDF you can peruse…hope it is helpful.
Bottom line…its your conscience that you must follow in the “voting booth”…the imperative to me is that conscience must be formed so that it is not against the Church’s teachings on matters of Faith and Morality.
1785 In the** formation of conscience the Word of God is the light for our path,**54 we must assimilate it in faith and prayer and put it into practice. We must also examine our conscience before the Lord’s Cross. We are assisted by the gifts of the Holy Spirit, aided by the witness or advice of others and guided by the authoritative teaching of the Church.55
1794 A good and pure conscience is enlightened by true faith, for** charity proceeds at the same time "from a pure heart and a good conscience and sincere faith**."60
[INDENT]The more a correct conscience prevails, the more do persons and groups turn aside from blind choice and try to be guided by objective standards of moral conduct.61
2039 Ministries should be exercised in a spirit of fraternal service and dedication to the Church, in the name of the Lord.81 At the same time the conscience of each person should avoid confining itself to individualistic considerations in its moral judgments of the person’s own acts. As far as possible conscience should take account of the good of all, as expressed in the moral law, natural and revealed, and consequently in the law of the Church and in the authoritative teaching of the Magisterium on moral questions. **Personal conscience and reason should not be set in opposition to the moral law or the Magisterium of the Church.