Sen. Rand Paul (R-KY) did not endorse JD Vance for a possible 2028 bid on Sunday, saying he is in favor of a GOP representative who believes in international trade, a free market, and low taxes.

Vance has not announced he is running for president in 2028 but is fielding plenty of speculation about a bid after receiving support from President Donald Trump, Turning Point USA CEO Erika Kirk, and Rep. Anna Paulina Luna (R-FL). Paul, who has challenged Trump administration stances on several issues in its first year, did not throw his support behind Vance as the GOP heir apparent when asked in an interview on ABC News’s This Week on Sunday.