There's no case to make for Catholics to support Trump. Trump's adimiration and dealings with Putin indicate that T has Putin's interests more at heart than the American citizens he proposes to lead.
Trump's serial lying, mysogny, racism, name-calling, betrayal of the Kurds, failure to lead through through the Pandemic etc. are indicative that T does not have the character and soul to be elected to a second term. Who are T's supporters-- white supremacists and rich people who fear that a Democrat president will raise taxes. Don't waste your money.