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Former Sen. David Perdue (R-Ga.) is considering running against Sen. Raphael Warnock (D-Ga.) in 2022, filing campaign paperwork with the Federal Election Commission on Monday night.

In January's runoff elections, Perdue lost his seat to Sen. Jon Ossoff (D-Ga.), while Warnock defeated former Sen. Kelly Loeffler (R-Ga.), the appointed replacement for Sen. Johnny Isakson (R-Ga.), who resigned in late 2019 due to health issues. Warnock is finishing out the rest of Isakson's term, and will be able to run for a full six-year term in 2022.

A senior adviser told The Atlanta Journal-Constitution on Monday that Perdue is "leaning heavily toward" challenging Warnock. He will make a decision by March 1, the adviser said, and will announce in April.

Warnock, the senior pastor at historic Ebenezer Baptist Church, solidly defeated Loeffler by 93,000 votes. Loeffler and former Rep. Doug Collins (R-Ga.) are mulling entering the 2022 race, the Journal-Constitution reports, but they won't make any decisions until they know what Perdue is planning. Other Republicans considering a run include Georgia Lt. Gov. Geoff Duncan and former U.S. Ambassador to Luxembourg Randy Evans.