From the diocese’s website: 

Recently Father Frank Pavone has posted a variety of messages and statements in regard to the General Elections in November, 2020. These postings on Social Media as videos concern the serious sinfulness of voting for candidates of a particular political party (with refusal of absolution if confessed) and the use of scandalous words not becoming of a Catholic priest. These postings are not consistent with Catholic Church teachings. Neither the Catholic Church nor the Diocese of Amarillo condone any of these messages. Please disregard them and pray for Father Pavone.

CNA provides some helpful context: 

In tweets that were subsequently deleted, Pavone last weekend reportedly called Democratic presidential nominee Joe Biden a “[expletive] loser” and said the Democratic party was “God-hating” and “America-hating” and that Biden’s supporters “can’t say a [expletive] thing in support of their loser candidate without using the word Trump.”

“What the hell do you have to say for yourselves, losers?” Pavone asked.

As the diocesan statement indicated, Pavone also reportedly tweeted that he would hear the confession of a Catholic who votes Democrat, “but we are trained that in the absence of repentance, absolution has to be withheld.”

In other videos posted on the Priests for Life Facebook page, Pavone referred to the “terrible mistake of even considering voting Democrat.”

Asked by CNA in April whether he had obtained permission from his bishop to officially campaign for Trump’s re-election, Pavone would not answer directly; he said that he had not been forbidden from doing so, and that communication with his bishop was a “dysfunctional process.”