I don't know any Catholic can continue to vote for a Democrat in light the parties growing extremist pro-abortion stance and the blatant anti-Catholic rhetoric coming from prominent Democratic politicians.
For many older Catholics the link between their faith and the Democrat Party was extra strong.
My parents grew up during the Great Depression when FDR "saved" the country. Most Republicans were Protestants, and many times it was easy to tell who voted for whom depending on their religion. Most Catholics voted for Democrats.
It was only until shortly before he died at the age of 93 that my father informed us, his children, that he had become an independent. He didn't say why, but I'll bet the abortion issue (both parents were strongly pro-life) had something to do with it.
But the bond between non-Hispanic Catholics and Democrats remains strong as the bond between Hispanic Catholics and Democrats.