Pop star Taylor Swift lamented not speaking out against President Trump in the last presidential election.

Swift, 30, publicly commented on politics for the first time ahead of the 2018 midterm elections with her endorsement of Democrat Phil Bredesen, who ran for the Senate in Tennessee.

In the forthcoming Netflix documentary, Miss Americana, Swift discusses with her family and public relations staff the backlash that could follow her endorsement. Swift is told that her support of Bredesen could be seen as a condemnation of the president.

"I don’t care if they write that. I'm sad I didn't say it two years ago,” Swift said, according to the Daily Beast.

“I want to be on the right side of history,” she said.

Her publicist also warned her that Trump could attack her, to which Swift replied, “F—k that. I don’t care.”

Swift endorsed Bredesen, who lost the race, and criticized his Republican opponent Sen. Marsha Blackburn, for voting against reauthorizing the Violence Against Women Act and her lack of support for same-sex marriage.

"I can't see another commercial [with] her disguising these policies behind the words 'Tennessee Christian values.’ I live in Tennessee. I am Christian. That's not what we stand for,” Swift said in the documentary, also calling Blackburn “Trump in a wig.”

Swift recalled the backlash to the Dixie Chicks's decision to criticize President George W. Bush in the run-up to the 2003 invasion of Iraq as the reason why she didn’t speak about politics.