NEW YORK (AP) — The political network created by the billionaire Koch brothers announced plans to support eight House Republicans on Thursday, pledging financial resources and activists to help re-elect several vulnerable congressmen deemed “principled” conservatives. The first wave of endorsements includes a handful of sometime-critics of President Donald Trump, particularly on immigration and spending.

The announcement comes a month after Trump assailed the Koch brothers as “a total joke in real Republican circles.” Days earlier, network patriarch Charles Koch had condemned the increased government spending under the Republican president’s leadership and Trump’s push for import tariffs.

Despite the clash with the White House, the Koch network remains one of the most powerful political organizations in the country. The sprawling organization is on pace to spend as much as $400 million on politics and policy ahead of November’s election. And its coalition of trained activists across 36 states has no rival.

The candidates backed by the network’s political arm, Americans for Prosperity, include eight men from seven states: Reps. Rod Blum and David Young of Iowa, Dave Brat of Virginia, Ted Budd of North Carolina, Steve Chabot of Ohio, Will Hurd of Texas, Erik Paulsen of Minnesota and Peter Roskam of Illinois.

For each of the candidates, Americans for Prosperity “will fully activate its grass-roots infrastructure through phone banks and neighborhood canvassing, as well as deploy targeted digital, mail and radio advertising,” according to a statement. All but one of the endorsed candidates supported efforts to repeal President Barack Obama’s health care law, including the popular provision that required insurance companies to cover pre-existing conditions.

All of them voted for the sweeping tax cuts and the GOP plan to ease banking regulations put in place after the 2007 financial collapse. Most supported the White House-backed $1.3 trillion spending bill Congress adopted earlier in the year over the Koch network’s objections. The opponents included three people on the endorsement list: Freedom Caucus members Blum, Brat and Budd.

Some of the group also oppose Trump’s immigration policies. The Koch network favors a more forgiving immigration policy in line with much of the business wing of the GOP.