Former U.S. Sen. David Perdue is seriously considering mounting a Republican primary challenge against Gov. Brian Kemp, according to a number of GOP activists and operatives, which would set up a divisive showdown between two of Georgia’s biggest political figures in the 2022 election.

In recent weeks, Perdue has called donors and other allies to float the idea, according to eight people who spoke on condition of anonymity to discuss confidential matters. Several of them said he’s “conflicted” about a run, while others say he’s leaning toward a challenge.

Perdue has kept quiet publicly about his plans, and he declined to comment. But he remains close to former President Donald Trump, who encouraged the former U.S. senator to run at a rally in Middle Georgia in September. Trump’s allies also recently leaked polls that show Perdue in a strong position.

The biggest question is whether the 71-year-old is motivated to take on Kemp after narrowly losing a January U.S. Senate runoff to Jon Ossoff. Perdue ruled out a comeback bid against Democrat Raphael Warnock but hasn’t yet backed Kemp’s reelection after initial indications he would do so. Meanwhile, he’s building a new estate in coastal Georgia.