Americans For Prosperity has launched a "Naughty or Nice" list to highlight lawmakers the conservative group says are either on the wrong or right side of the tax reform debate.

The "naughty" list reads like a roster of lawmakers likely to face primary challenges from the right, largely because of their positions on tax increases or spending cuts. 

It includes Sens. Saxby ChamblissClarence (Saxby) Saxby ChamblissLobbying World Former GOP senator: Let Dems engage on healthcare bill OPINION: Left-wing politics will be the demise of the Democratic Party MORE (R-Ga.), Bob CorkerRobert (Bob) Phillips CorkerSunday Shows Preview: Emmanuel Macron talks ahead of state dinner Pompeo lacks votes for positive vote on panel Democrats mull audacious play to block Pompeo MORE (R-Tenn.), Dick DurbinRichard (Dick) Joseph DurbinHannity, Kimmel, Farrow among Time's '100 Most Influential' The Hill's Morning Report: 200 Days to the Election Dems walk tightrope on Pompeo nomination MORE (D-Ill.), Lindsey GrahamLindsey Olin GrahamGOP sold Americans a bill of goods with tax reform law Republicans divided over legislation protecting Mueller Rand Paul under pressure as Pompeo hunts for votes MORE (R-S.C.) and Patty MurrayPatricia (Patty) Lynn MurrayThe risk of kicking higher ed reauthorization down the road Trump admin announces abstinence-focused overhaul of teen pregnancy program Overnight Energy: Senate confirms Bridenstine as NASA chief | Watchdog probes Pruitt’s use of security detail | Emails shine light on EPA science policy changes MORE (D-Wash.), as well as Reps. Tom Cole (R-Okla.), Peter DeFazio (D-Ore.), Pete King (R-Iowa) and Chris Van Hollen (D-Md.).

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Chambliss recently pushed back against Grover Norquist's no-tax pledge and in doing so indicated he might be open to raising taxes on wealthy Americans, a plank of President Obama's deal to avert the "fiscal cliff" that Republicans have thus far refused to accept. 

The Georgia Republican, however, was vulnerable long before his comments on the no-tax pledge because of his work across the aisle on immigration and the federal debt.

Graham, too, said he'd be willing to violate the Norquist pledge and has long been in conservative crosshairs for his initial work with Democrats on immigration and climate-change legislation, as well as his votes for Obama's Supreme Court nominees.

Cole has been targeted by Americans for Tax Reform previously because of his comments in favor of a deal proposed by Obama to avert the fiscal cliff. And King indicated recently he doesn't feel bound to the Norquist pledge.

The "nice" list features no Democrats. It includes Sens. Jim DeMint (R-S.C.), Pat Toomey (R-Pa.), Jeff SessionsJefferson (Jeff) Beauregard SessionsThe Memo: Trump lowers the temperature on Mueller probe Sessions warned White House he could quit if Trump fired Rosenstein: report Impeaching Rosenstein? Some Republicans are talking about it MORE (R-Ala.) and Rand PaulRandal (Rand) Howard PaulPompeo lacks votes for positive vote on panel CIA declassifies memo on nominee's handling of interrogation tapes Overnight Defense: House to begin work on defense policy bill | Panel to vote Monday on Pompeo | Trump to deliver Naval Academy commencement speech | Trump appeals decision blocking suspected combatant's transfer MORE (R-Ky.), as well as Reps. Scott GarrettErnest (Scott) Scott GarrettManufacturers ramp up pressure on Senate to fill Ex-Im Bank board Five things lawmakers want attached to the trillion funding bill Bipartisan group of House lawmakers urge action on Export-Import Bank nominees MORE (R-N.J.), Jim Jordan (R-Ohio), Mick Mulvaney (R-S.C.), Mike Pompeo (R-Kan.) and Steve Scalise (R-La.).

Most on the nice list have the backing of the Tea Party and are staunch fiscal conservatives.

DeMint will resign in January to join the conservative Heritage Foundation, and Mulvaney is a possible contender for the seat.