The Senate Conservatives Fund (SCF) is taking aim at the lower chamber of Congress.

The group, which until now has almost exclusively focused on Senate races, is endorsing five House candidates facing competitive primaries.

"These candidates believe deeply in our nation's founding principles and will be strong voices for freedom in Washington," said SCF Executive Director Matt Hoskins in a statement. "They are strong conservatives who will fight to balance the budget and repeal ObamaCare."

One endorsed candidate include attorney Bryan Smith (R), a Tea Party challenger running against Rep. Mike Simpson (R-Idaho). Smith has gained a lot of national attention and already has the backing of the deep-pocketed Club for Growth.

The others include Iowa Secretary of State Matt Schultz (R), who's in a crowded primary to replace retiring Rep. Tom Latham (R-Iowa); former Maryland GOP Chairman Alex Mooney (R), who's running for the seat Rep. Shelley Moore CapitoShelley Wellons Moore CapitoSenate panel advances three spending bills Press shuts out lawmakers to win congressional softball game Senate DHS bill includes .6 billion for ‘fencing’ on border MORE (R-W.Va.) is vacating for her Senate run; Chad Mathis (R), who's in a competitive primary to replace retiring Rep. Spencer BachusSpencer Thomas BachusManufacturers ramp up pressure on Senate to fill Ex-Im Bank board Bipartisan group of House lawmakers urge action on Export-Import Bank nominees Overnight Finance: Trump, lawmakers take key step to immigration deal | Trump urges Congress to bring back earmarks | Tax law poised to create windfall for states | Trump to attend Davos | Dimon walks back bitcoin criticism MORE (R-Ala.); and Barry Loudermilk (R), one of several Republicans running to replace Senate candidate and Rep. Phil GingreyJohn (Phil) Phillip Gingrey2017's top health care stories, from ObamaCare to opioids Beating the drum on healthcare Former GOP chairman joins K Street MORE (R-Ga.).

This is the first time the SCF has gotten involved directly in House races — they'd previously endorsed Rep. Jim BridenstineJames (Jim) Frederick BridenstineOvernight Defense: Pentagon asked to prep housing for up to 20K migrant children | Senators move to block F-35 transfer to Turkey | Trump Mar-a-Lago trips cost Coast Guard M NASA’s unnecessary 4 million lunar orbit project doesn’t help us get back to the Moon SpaceX is not a threat to NASA MORE (R-Okla.), but that was more to signal that they'd back him if he ran for Senate.