Top Republicans are expressing unease after former President Trump announced his plan to deliver a speech on the one-year anniversary of the Jan. 6 Capitol riot in which he will reiterate his baseless claims that Democrats engaged in a widespread campaign of voter fraud to steal the 2020 election.

Republican Senators Shelley Moore Capito (W.Va.), Joni Ernst (Iowa), Pat Toomey (Pa.), John Cornyn (Texas), Tim Scott (S.C.), and John Thune (S.D.) all either declined to comment on the upcoming speech or said it would be an unwelcome distraction from more important issues, POLITICO reported Tuesday.

Rep. Liz Cheney (R-Wyo.), a frequent critic of the former president, said Sunday on Face the Nation that Trump’s announcement was “very concerning” but “not surprising” that Trump would continue to repeat claims that “caused violence,” Newsweek reported.

Alyssa Farah, who served as director of strategic communications for the Trump administration, told CNN Sunday that Jan. 6 would be “a wise day for [Trump] to stay silent.”

These remarks are indicative of an ongoing tension within the GOP. Most Republican lawmakers are unwilling to openly defy Trump, who remains a powerful kingmaker and, should he run, the party’s likely 2024 nominee. At the same time, many are also hesitant to offer their full-throated support to the former president’s stolen election claims.

Trump announced the speech in a Dec. 21 statement posted on his official website. “Why isn’t the Unselect Committee of highly partisan political hacks investigating the CAUSE of the January 6th protest, which was the rigged Presidential Election of 2020?” Trump wrote. “I will be having a news conference on January 6th at Mar-a-Lago to discuss all of these points, and more. Until then, remember, the insurrection took place on November 3rd.”

Trump also called out Republicans who refuse to pursue investigations based on his claims of voter fraud. “In many ways a RINO is worse than a Radical Left Democrat,” he wrote.

President Biden and Vice President Harris are also scheduled to deliver remarks, doubtless of a very different tenor, on Jan. 6.