Federal Election Commission (FEC) filings reveal The Lincoln Project has also targeted more than a half-dozen other Republicans up for reelection in 2020, including Sens. Cory Gardner (Colo), Martha McSally (Ariz.), Lindsey Graham (S.C.), Thom Tillis (N.C.), Joni Ernst (Iowa), John Cornyn (Texas) and Senate Majority Leader Mitch McConnell (Ky.).

The group is running ads in support of Democratic Senate candidate Steve Bullock in Montana and independent Al Gross in Alaska, who are seeking to unseat Sens. Steve Daines (R-Mont.) and Dan Sullivan (R-Alaska), respectively.

Reed Galen, a strategist for the group, told The Hill that “the Senate map has expanded” and that off-cycle Senate Republicans “shouldn’t believe their day won’t come.” The Lincoln Project has invested very small amounts in ads going after Sens. Marco Rubio (R-Fla.), Ted Cruz (R-Texas), James Inhofe (R-Okla.) and Mike Rounds (R-S.D.).